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A number sign (#) is used with this entry because pachyonychia congenita-4 (PC4) is caused by heterozygous mutation in the KRT6B gene (148042) on chromosome 12q13. Description Pachyonychia congenita (PC) is an autosomal dominant genodermatosis with the main clinical features of hypertrophic nail dystrophy, painful and highly debilitating plantar keratoderma, oral leukokeratosis, and a variety of epidermal cysts. Although the condition had previously been subdivided clinically into Jadassohn-Lewandowsky PC type 1 and Jackson-Lawler PC type 2, patients with PC were later found to have a mixed constellation of both types, leading to a classification of PC based on genotype (summary by Sybert, 2010; Eliason et al., 2012; McLean et al., 2011). For a discussion of genetic heterogeneity of pachyonychia congenita, see 167200. Historical Classification of Pachyonychia Congenita Gorlin et al. (1976) suggested that 2 distinct syndromes are subsumed under the designation pachyonychia congenita.
Pachyonychia congenita (PC) is a rare genodermatosis predominantly featuring painful palmoplantar keratoderma, thickened nails, cysts and whitish oral mucosa. Epidemiology The prevalence is not known but approximately 1000 patients have been registered to date worldwide. Clinical description PC presents clinically as a spectrum of conditions. PC onset is variable with most cases manifesting soon after birth, others becoming clinically apparent only in late childhood and rarely in adulthood. The first signs of the disease usually are thickened nails or neonatal teeth.
Pachyonychia congenita (PC) is a rare inherited condition that primarily affects the nails and skin. The fingernails and toenails may be thickened and abnormally shaped . Affected people can also develop painful calluses and blisters on the soles of their feet and less frequently on the palms of their hands ( palmoplantar keratoderma ). Additional features include white patches on the tongue and inside of the mouth (leukokeratosis); bumps around the elbows, knees, and waistline (follicular hyperkeratosis); and cysts of various types including steatocystoma. Features may vary among affected people depending on their specific mutation.
For a phenotypic description and a discussion of genetic heterogeneity of pachyonychia congenita, see 167200. Inheritance Chong-Hai and Rajagopalan (1977) suggested autosomal recessive inheritance of pachyonychia congenita in a 4-year-old Malaysian girl with first-cousin parents, although they recognized new dominant mutation as a possibility. See also Sivasundram et al. (1985). INHERITANCE - Autosomal recessive HEAD & NECK Mouth - No oral leukoplakia SKIN, NAILS, & HAIR Skin - Horny papules (face, leg, buttocks) - No palmoplantar hyperkeratosis - No hyperhidrosis Nails - Episodic inflammatory swelling of nail bed - Recurrent shedding of nails - Hard,thickened nails (pachyonychia) - Subungual hyperkeratosis MISCELLANEOUS - See also pachyonychia congenita, type 3 (PC1, 167200 ) ▲ Close
A number sign (#) is used with this entry because pachyonychia congenita-3 (PC3) is caused by heterozygous mutation in the keratin-6a gene (KRT6A; 148041) on chromosome 12q13. Description Pachyonychia congenita (PC) is an autosomal dominant genodermatosis with the main clinical features of hypertrophic nail dystrophy, painful and highly debilitating plantar keratoderma, oral leukokeratosis, and a variety of epidermal cysts. Although the condition had previously been subdivided clinically into Jadassohn-Lewandowsky PC type 1 and Jackson-Lawler PC type 2, patients with PC were later found to have a mixed constellation of both types, leading to a classification of PC based on genotype (summary by Sybert, 2010; Eliason et al., 2012; McLean et al., 2011). For a discussion of genetic heterogeneity of pachyonychia congenita, see 167200. Historical Classification of Pachyonychia Congenita Gorlin et al. (1976) suggested that 2 distinct syndromes are subsumed under the designation pachyonychia congenita.
A number sign (#) is used with this entry because of evidence that pachyonychia congenita-2 (PC2) is caused by heterozygous mutation in the KRT17 gene (148069) on chromosome 17q21. Description Pachyonychia congenita (PC) is an autosomal dominant genodermatosis with the main clinical features of hypertrophic nail dystrophy, painful and highly debilitating plantar keratoderma, oral leukokeratosis, and a variety of epidermal cysts. Although the condition had previously been subdivided clinically into Jadassohn-Lewandowsky PC type 1 and Jackson-Lawler PC type 2, patients with PC were later found to have a mixed constellation of both types, leading to a classification of PC based on genotype (summary by Sybert, 2010; Eliason et al., 2012; McLean et al., 2011). For a discussion of genetic heterogeneity of pachyonychia congenita, see 167200. Historical Classification of Pachyonychia Congenita Gorlin et al. (1976) suggested that 2 distinct syndromes are subsumed under the designation pachyonychia congenita.
A number sign (#) is used with this entry because pachyonychia congenita-1 (PC1) is caused by heterozygous mutation in the keratin-16 gene (KRT16; 148067) on chromosome 17q21. Description Pachyonychia congenita (PC) is an autosomal dominant genodermatosis with the main clinical features of hypertrophic nail dystrophy, painful and highly debilitating plantar keratoderma, oral leukokeratosis, and a variety of epidermal cysts. Although the condition had previously been subdivided clinically into Jadassohn-Lewandowsky PC type 1 and Jackson-Lawler PC type 2, patients with PC were later found to have a mixed constellation of both types, leading to a classification of PC based on genotype (summary by Sybert, 2010; Eliason et al., 2012; McLean et al., 2011). Historical Classification of Pachyonychia Congenita Gorlin et al. (1976) suggested that 2 distinct syndromes are subsumed under the designation pachyonychia congenita. PC type 1, the Jadassohn-Lewandowsky type, shows oral leukokeratosis.
Lippincott Williams & Wilkins. pp. 254–256. ISBN 0-7817-3905-5 . ^ a b c d e f g h i Smith, Melanie N. (2006-05-10). ... Cambridge University Press . p. 77. ISBN 1-900151-51-0 . ^ Papadakis, Maxine A.; Stephen J. ... McGraw-Hill Professional. p. 60. ISBN 0-07-145892-1 . ^ a b Bosze, Peter; David M. ... Informa Health Care. p. 66. ISBN 963-00-7356-0 . ^ "Cervical Polyps" (PDF) . ... . Medscape.com . Retrieved 2007-10-21 . ^ Tillman, Elizabeth. "Short Instructor Materials" (PDF) .
Actual rates of hypoglycemia associated with a fibrous tumor are quite rare (a 1981 study of 360 solitary fibrous tumors of the lungs found that only 4% caused hypoglycemia [8] ), and are linked to large tumors with high rates of mitosis . [9] Removal of the tumor will normally resolve the symptoms. [1] [9] Tumors causing DPS tend to be quite large; [10] in one case a 3 kg (6.6 lb), 23×21×12 cm (9.1×8.3×4.7 in) mass was removed, sufficiently large to cause a collapsed lung . [5] In X-rays , they appear as a single mass with visible, defined borders, appearing at the edges of the lungs or a fissure dividing the lobes of the lungs. [10] Similar hypoglycemic effects have been related to mesenchymal tumors. [6] References [ edit ] ^ a b Balduyck B, Lauwers P, Govaert K, Hendriks J, De Maeseneer M, Van Schil P (July 2006). ... Surg . 119 (1): 185–7. doi : 10.1016/S0022-5223(00)70242-X . PMID 10612786 . Archived from the original on 2013-01-12. ^ a b Shields, TW; LoCicero J; Ponn RB; Rusch VW (2005). ... Hagerstwon, MD: Lippincott Williams & Wilkins. pp. 893 . ISBN 0-7817-3889-X . ^ Ellorhaoui M, Graf B (February 1976). ... Hagerstwon, MD: Lippincott Williams & Wilkins. pp. 172–3 . ISBN 978-0-7817-6957-0 . v t e Paraneoplastic syndromes Endocrine Hypercalcaemia SIADH Zollinger–Ellison syndrome Cushing's syndrome Hematological Multicentric reticulohistiocytosis Nonbacterial thrombotic endocarditis Neurological Paraneoplastic cerebellar degeneration Encephalomyelitis Limbic encephalitis Opsoclonus Polymyositis Transverse myelitis Lambert–Eaton myasthenic syndrome Anti-NMDA receptor encephalitis Musculoskeletal Dermatomyositis Hypertrophic osteopathy Mucocutaneous reactive erythema Erythema gyratum repens Necrolytic migratory erythema papulosquamous Acanthosis nigricans Ichthyosis acquisita Acrokeratosis paraneoplastica of Bazex Extramammary Paget's disease Florid cutaneous papillomatosis Leser-Trélat sign Pityriasis rotunda Tripe palms Other Febrile neutrophilic dermatosis Pyoderma gangrenosum Paraneoplastic pemphigus v t e Tumours of endocrine glands Pancreas Pancreatic cancer Pancreatic neuroendocrine tumor α : Glucagonoma β : Insulinoma δ : Somatostatinoma G : Gastrinoma VIPoma Pituitary Pituitary adenoma : Prolactinoma ACTH-secreting pituitary adenoma GH-secreting pituitary adenoma Craniopharyngioma Pituicytoma Thyroid Thyroid cancer (malignant): epithelial-cell carcinoma Papillary Follicular / Hurthle cell Parafollicular cell Medullary Anaplastic Lymphoma Squamous-cell carcinoma Benign Thyroid adenoma Struma ovarii Adrenal tumor Cortex Adrenocortical adenoma Adrenocortical carcinoma Medulla Pheochromocytoma Neuroblastoma Paraganglioma Parathyroid Parathyroid neoplasm Adenoma Carcinoma Pineal gland Pinealoma Pinealoblastoma Pineocytoma MEN 1 2A 2B
A rare photodermatosis characterized by the development of pruritic or painful vesicles in a photodistributed pattern in response to sunlight exposure. The lesions heal with permanent varioliform scarring. Ocular involvement, deformities of ears and nose, or contractures of the fingers may occasionally be observed. Systemic signs and symptoms are absent. The condition typically occurs in childhood and regresses spontaneously in adolescence or young adulthood.
Prognosis [ edit ] The prognosis of SSSS in children is excellent, with complete resolution within 10 days of treatment, and without significant scarring. ... The Lancet . 156 (4011): 89–95. doi : 10.1016/S0140-6736(00)65681-7 . ^ Weisse, Martin E (31 December 2000). ... The Lancet . 357 (9252): 299–301. doi : 10.1016/S0140-6736(00)03623-0 . PMID 11214144 . S2CID 35896288 . ^ Powell, KR (January 1979). ... The Journal of Pediatrics . 78 (6): 958–67. doi : 10.1016/S0022-3476(71)80425-0 . PMID 4252715 . ^ Morens, David M; Katz, Alan R; Melish, Marian E (31 May 2001). ... The Lancet . 357 (9273): 2059. doi : 10.1016/S0140-6736(00)05151-5 . PMID 11441870 . S2CID 35925579 .
A rare staphylococcal toxemia caused by epidermolytic toxins of Staphylococcus aureus and characterized by the appearance of widespread erythematous patches, on which large blisters develop. Upon rupture of these blisters, the skin appears reddish and scalded. The lesions typically begin in the face and rapidly expand to other parts of the body. The disease may be complicated by pneumonia and sepsis. It most commonly affects newborns and infants.
Lack of awareness of the patient's predisposition to adverse effects (e.g. anxious patients and the elderly) and failure to attribute the adverse effects to the drug serves to compound the phobia. [8] [9] Starting at low doses and slowly increasing the medication dosage can avoid medication phobia secondary to adverse effects from developing. [9] Fears of medication use is also prevalent in people who have experienced unpleasant withdrawal effects from psychotropic drugs . [10] Sometimes patients wrongly associate symptoms of an acute disease or illness with medications used to treat the disease or illness. ... Clin Dermatol . 19 (1): 69–71. doi : 10.1016/S0738-081X(00)00215-7 . PMID 11369491 . ^ "Drugs that call for extra caution. ... New York: Simon Schuster. p. 56. ISBN 978-0-684-87309-1 . ^ M.d. Kamath, Bob (30 May 2007). ... Kendall Hunt Publishing. p. 25. ISBN 978-0-7872-8701-6 . ^ Ashton CH (2002).
Clinical Features Lisch et al. (1992) described 5 family members and 3 unrelated patients (4 males, 4 females), aged 23 to 71 years, with bilateral or unilateral, gray, band-shaped, and feathery opacities that sometimes appeared in whorled patterns. Retroillumination showed that the opacities consisted of intraepithelial, densely crowded, clear microcysts. Light and electron microscopy disclosed diffuse vacuolization of the cytoplasm of epithelial cells in the affected area. Visual acuity was so reduced in 3 patients that abrasion of the corneal epithelium was performed. The corneal abnormalities recurred within months, with the same reduction in visual acuity as before.
Lisch epithelial corneal dystrophy (LECD) is a very rare form of superficial corneal dystrophy characterized by feather-shaped opacities and microcysts in the corneal epithelium arranged in a band-shaped and sometimes whorled pattern, occasionally with impaired vision. Epidemiology Exact prevalence of this form of corneal dystrophy is not known but very few cases have been reported to date. LECD has been documented in one German family and in rare sporadic cases in Germany and the USA. Clinical description Lesions generally develop in childhood. Epithelial opacities are slowly progressive and painless blurred vision sometimes occurs after 60 years of age. Etiology The exact cause is unknown but appears to be genetic. The gene related to Lisch epithelial corneal dystrophy has been mapped to the short arm of the X chromosome (Xp22.3).
Prognosis [ edit ] Kasabach–Merritt syndrome has a mortality rate of about 30%. [9] [10] For patients that survive the acute disease, supportive care may be required through a gradual recovery. [ citation needed ] Furthermore, patients may need care from a dermatologist or plastic surgeon for residual cosmetic lesions or an otolaryngologist for head & neck/airway involvement. ... Andrews' Diseases of the Skin: Clinical Dermatology (10th ed.). Saunders. p. 597. ISBN 978-0-7216-2921-6 . ^ a b c d e Hall G (2001). ... J Pediatr Surg . 23 (2): 109–11. doi : 10.1016/S0022-3468(88)80135-0 . PMID 3278084 . ^ a b c d Kasabach-Merritt Syndrome at eMedicine ^ Larsen, EC; Zinkham, WH; Eggleston, JC; Zitelli, BJ (June 1987). ... J Am Acad Dermatol . 42 (2 Pt 1): 225–35. doi : 10.1016/S0190-9622(00)90130-0 . PMID 10642677 . External links [ edit ] Classification D ICD - 10 : D69.5 ( ILDS D69.507) ICD - 9-CM : 287.39 OMIM : 141000 MeSH : D059885 DiseasesDB : 30701 SNOMED CT : 86635005 External resources eMedicine : med/1221 ped/1234 Orphanet : 2330
With giant hemangiomas in small children, thrombocytopenia and red cell changes compatible with trauma ('microangiopathic hemolytic anemia') have been observed. The mechanism of the hematologic changes is obscure. No evidence of a simple genetic basis has been discovered. Propp and Scharfman (1966) reported a male infant with thrombocytopenia associated with a large hemangioma of the right arm and axilla. The patient had low platelet counts with a markedly diminished platelet survival time and an absence of platelet agglutinin or complement-fixing antibody. Radiochromate-tagged platelet studies suggested sequestration in the hemangioma, liver, and spleen.
Hemangioma thrombocytopenia syndrome is characterized by profound thrombocytopenia in association with two rare vascular tumors: kaposiform hemangioendotheliomas and tufted angiomas . The profound thrombocytopenia can cause life threatening bleeding and progress to a disseminated coagulopathy in patients with these tumors. The condition typically occurs in early infancy or childhood, although prenatal cases (diagnosed with the aid of ultrasonography), newborn presentations, and rare adult cases have been reported.
Kasabach-Merritt syndrome (KMS), also known as hemangioma-thrombocytopenia syndrome, is a rare disorder characterized by profound thrombocytopenia, microangiopathic hemolytic anemia, and subsequent consumptive coagulopathy in association with vascular tumors, particularly kaposiform hemangioendothelioma or tufted angioma.
Hagerstown, MD: Lippincott Williams & Wilkins. p. 1150. ISBN 0-7817-2655-7 . Retrieved 2008-06-16 . ^ a b c d e f Scalea TM (2005). ... Boca Raton: CRC. pp. 26–32. ISBN 978-0-8493-8138-6 . Retrieved 2008-07-06 . ^ a b Porth, Carol (2007). ... Hagerstown, MD: Lippincott Williams & Wilkins. p. 838. ISBN 978-0-7817-7087-3 . Retrieved 2008-07-03 . ^ Pitkänen A, McIntosh TK (2006). ... Neurotrauma: New Insights Into Pathology and Treatment . Elsevier. pp. 13–19. ISBN 978-0-444-53017-2 . Retrieved 2008-06-10 . ^ a b Granacher RP (2007). ... Neuroscience . 101 (2): 289–95. doi : 10.1016/S0306-4522(00)00380-8 . PMID 11074152 . S2CID 20457228 . ^ Sauaia A, Moore FA, Moore EE, et al.
. ^ "Deaths in the district of Inveresk and Musselburgh in the County of Edinburgh" . Statutory Deaths 689/00 0032 . ScotlandsPeople . Retrieved 11 April 2015 . External links [ edit ] Classification D ICD-O : 8011/0, 8011/3 Wikimedia Commons has media related to Epithelioma .
Few studies have specifically focused on guttate psoriasis management, so there are currently no firm guidelines for managing guttate psoriasis differently from plaque psoriasis . [10] [11] Immunosuppressive drugs that inhibit T cell activation have been effective in treating severe cases of chronic guttate psoriasis. [12] Due to the role streptococcal infection plays in the development of guttate psoriasis, systemic antibiotics have been considered as a potential treatment option. ... Fitzpatrick's Dermatology in General Medicine (6th ed.). McGraw-Hill. ISBN 0-07-138076-0 . ^ James W, Berger T, Elston D (2005). Andrews' Diseases of the Skin: Clinical Dermatology (10th ed.). Saunders. ISBN 0-7216-2921-0 . ^ Pardasani AG, Feldman SR, Clark AR (February 2000). ... Journal of the American Academy of Dermatology . 42 (5 Pt 2): 885–7. doi : 10.1016/s0190-9622(00)90263-9 . PMID 10767696 . ^ Mehlis S (2019). ... External links [ edit ] Classification D ICD - 10 : L40.4 ( ILDS L40.400) DiseasesDB : 34089 v t e Papulosquamous disorders Psoriasis Pustular Generalized pustular psoriasis ( Impetigo herpetiformis ) Acropustulosis / Pustulosis palmaris et plantaris ( Pustular bacterid ) Annular pustular psoriasis Localized pustular psoriasis Other Guttate psoriasis Psoriatic arthritis Psoriatic erythroderma Drug-induced psoriasis Inverse psoriasis Napkin psoriasis Seborrheic-like psoriasis Parapsoriasis Pityriasis lichenoides ( Pityriasis lichenoides et varioliformis acuta , Pityriasis lichenoides chronica ) Lymphomatoid papulosis Small plaque parapsoriasis ( Digitate dermatosis , Xanthoerythrodermia perstans ) Large plaque parapsoriasis ( Retiform parapsoriasis ) Other pityriasis Pityriasis rosea Pityriasis rubra pilaris Pityriasis rotunda Pityriasis amiantacea Other lichenoid Lichen planus configuration Annular Linear morphology Hypertrophic Atrophic Bullous Ulcerative Actinic Pigmented site Mucosal Nails Peno-ginival Vulvovaginal overlap synromes with lichen sclerosus with lupus erythematosis other: Hepatitis-associated lichen planus Lichen planus pemphigoides Other Lichen nitidus Lichen striatus Lichen ruber moniliformis Gianotti–Crosti syndrome Erythema dyschromicum perstans Idiopathic eruptive macular pigmentation Keratosis lichenoides chronica Kraurosis vulvae Lichen sclerosus Lichenoid dermatitis Lichenoid reaction of graft-versus-host disease
Guttate psoriasis is a skin condition in which small, red, and scaly teardrop-shaped spots appear on the arms, legs, and middle of the body. It is a relatively uncommon form of psoriasis . The condition often develops very suddenly, and is usually triggered by an infection (e.g., strep throat, bacteria infection, upper respiratory infections or other viral infections). Other triggers include injury to the skin, including cuts, burns, and insect bites, certain malarial and heart medications, stress, sunburn, and excessive alcohol consumption. Treatment depends on the severity of the symptoms, ranging from at-home over the counter remedies to medicines that suppress the body's immune system to sunlight and phototherapy.
Characteristics [ edit ] Botellón usually begins around 11:00 p.m. and ends around 3:00 a.m. when many people move to a bar or club. ... Since botellón is usually a nighttime activity, Spain passed a law that prohibits stores to sell alcohol to the public after 10:00 p.m, hoping to persuade people to attend clubs or bars where alcohol must remain on site. [ citation needed ] However, the measure is a controversial one because people can still buy alcohol before the selling limit hour and consume it in public. ... The area is equipped with trash bins, lighting, and protection from the seafront. [10] Another example of a botellódromo is Granada, another southern province. ... One example of a macro-botellón was on 17 March 2006, "Half of Spain [met] on the net to organize a macro-botellón". [13] The macro-botellón was organized in cities around Spain, such as Madrid, Barcelona, Sevilla, Oviedo, Murcia, Vitoria, Málaga, Córdoba, Granada, and Jaén. [14] One of the purposes of the macro-botellón on 17 March 2006, near the Faro de Moncloa in Madrid, Spain, was to protest against the municipal restrictions on drinking alcohol in the streets. ... CS1 maint: archived copy as title ( link ) ^ "Media España se cita en la Red para celebrar un macrobotellón el 17 de marzo" . 2006-03-07. ^ http://www.20minutos.es/noticia/97295/0/macrobotellones/ciudades/espana/ | Literally translated from Spanish ^ "El Ayuntamiento "no consentirá" el macrobotellón que se prepara en Moncloa" . 2006-03-07.
In Dogger Bank itch, sensitivity is acquired after repeated handling of the sea chervils that become entangled in fishing nets. [ citation needed ] The specific toxin responsible for the rash was determined to be the sulfur -bearing salt (2-hydroxyethyl) dimethylsulfoxonium chloride. [3] This salt is also found in some sea sponges and has potent in vitro activity against leukemia cells. [4] Treatment [ edit ] A study of two cases in 2001 suggests that the rash responds to oral ciclosporin . ... The sea chervil, abundant in the area, frequently came up with the fishing nets and had to be thrown back into the water. ... Andrews' Diseases of the Skin: clinical Dermatology . Saunders Elsevier. ISBN 978-0-7216-2921-6 . ^ Bonnevie, P. (1948). ... Comparative Biochemistry and Physiology B . 128 (1): 27–30. doi : 10.1016/S1096-4959(00)00316-X . CS1 maint: multiple names: authors list ( link ) ^ a b Bowers PW, Julian CG., PW; Julian, CG (2001). ... "Dogger Bank Itch. 4. an eczema-causing sulfoxonium ion from the marine animal, Alcyonidium gelatinosum ". Toxicon . 20 (1): 307–10. doi : 10.1016/0041-0101(82)90232-X .
The first specimen of physical evidence was found on the night of September 5, when Carl and Beulah Cordes of North 21st Street returned home around 10:00 pm. After spending a few minutes in the house they noticed a piece of white cloth, slightly larger than a man's handkerchief, sitting on their porch next to the screen door. ... Archived from the original on 2006-08-27 . Retrieved 2006-10-01 . ^ a b c d e Taylor, Troy (2002). ... Archived from the original on 2006-09-25 . Retrieved 2006-11-10 . ^ Chaplin, J. P. (1959). Rumor, Fear and The Madness of Crowds . ... Borderlands: The ultimate exploration of the unknown . Overlook. ISBN 0-87951-724-7 . ^ Janet, Pierre (1965). ... Detroit: Visible Ink Press. pp. 239 . ISBN 0-8103-9436-7 . ^ Do Go On. "146 - The Mad Gasser of Mattoon" .
About 40% of Axenfeld–Rieger sufferers have displayed mutations in genes PITX2, [7] FOXC1 , and PAX6 . [10] [11] The difference between Type 1, 2, and 3 Axenfeld–Rieger syndrome is the genetic cause, all three types display the same symptoms and abnormalities. [12] Classification [ edit ] The OMIM classification is as follows: Type OMIM Gene Type 1 180500 PITX2 Type 2 601499 possibly FOXO1A [13] Type 3 602482 FOXC1 DeHauwere syndrome 109120 Unknown [10] Detection of any of these mutations can give patients a clear diagnosis and prenatal procedures such as preimplantation genetic diagnosis , chorionic villus sampling and amniocentesis can be offered to patients and prospective parents. [14] [ failed verification ] Management [ edit ] This section is empty. ... Glaucoma develops during adolescence or late childhood, but often occurs in infancy. [8] [10] In addition, a prominent Schwalbe's line , an opaque ring around the cornea known as posterior embryotoxon, may arise with hypoplasia of the iris. [5] Below average height and stature, stunted development of the mid-facial features and mental deficiencies may also be observed in patients. [5] See also [ edit ] Primary juvenile glaucoma SHORT syndrome Autosome Chorionic villus sampling Amniocentesis Preimplantation genetic diagnosis References [ edit ] ^ Dhir, L; Frimpong-Ansah, K; Habib, Nabil E (2008). ... Journal of Oral Pathology & Medicine . 37 (8): 504–10. doi : 10.1111/j.1600-0714.2008.00650.x . ... Kanski's clinical ophthalmology : a systematic approach (9th ed.). Edinburgh: Elsevier. ISBN 978-0-7020-7713-5 . OCLC 1131846767 . ^ a b c Lowry, R. ... Medical Intelligence Unit. Springer. doi : 10.1007/0-387-28672-1 . ISBN 978-0-387-28672-3 .
Her 22-year-old half brother presented with glaucoma at 10 months of age. He was referred for evaluation of murmur and a failure to thrive and was found to have atrial septal defect requiring surgical repair. ... Failure of both medical and surgical treatment resulted in enucleation of a blind, painful left eye at 10 years of age. Independently, the father was found to have an atrial septal defect at 11 months of age, which eventually required surgical repair. ... Mapping Gould et al. (1997) performed linkage analysis in a 4-generation family segregating Axenfeld-Rieger anomaly, later found to segregate Axenfeld-Rieger syndrome (Mears et al., 1998), and obtained a maximum lod score of 3.1 (theta = 0) at marker D6S344 on chromosome 6p25. ... Chanda et al. (2008) analyzed the breakpoint architecture in 10 pedigrees with duplications or deletions at chromosome 6p25 and a diagnosis of glaucoma associated with iris hypoplasia or Axenfeld-Rieger syndrome, and found that in contrast to most previous examples, the majority of the segmental duplications and deletions utilized coupled homologous and nonhomologous recombination mechanisms.
Axenfeld-Rieger syndrome (ARS) is a generic term used to designate overlapping genetic disorders, in which the major physical condition is anterior segment dysgenesis of the eye. Patients with ARS may also present with multiple variable congenital anomalies. Epidemiology The syndrome has an estimated prevalence of 1/200,000. Clinical description The clinical manifestations of ARS are highly variable. Features can be divided into ocular and non-ocular findings. Ocular abnormalities mainly affect the iris: hypoplasia, corectopia or hole formation in the iris mimicking polycoria; cornea: prominent and anteriorly displaced Schwalbe's line (posterior embryotoxon); and the chamber angle: iris strands bridging the iridocorneal angle to the trabecular meshwork. Eye dysgenesis in ARS may cause increased ocular pressure (IOP) leading to glaucoma.
Axenfeld-Rieger syndrome is a group of disorders that mainly affects the development of the eye. Common eye symptoms include cornea defects and iris defects. People with this syndrome may have an off-center pupil (corectopia) or extra holes in the eyes that can look like multiple pupils (polycoria). About 50% of people with this syndrome develop glaucoma, a condition that increases pressure inside of the eye, and may cause vision loss or blindness. Click here to view a diagram of the eye. Even though Axenfeld-Rieger syndrome is primarily an eye disorder, this syndrome can affect other parts of the body. Most people with this syndrome have distinctive facial features and many have issues with their teeth, including unusually small teeth (microdontia) or fewer than normal teeth (oligodontia).
Description Axenfeld-Rieger syndrome is a disorder of morphogenesis that results in abnormal development of the anterior segment of the eye, which results in blindness from glaucoma in approximately 50% of affected individuals. Systemic abnormalities, including cardiac and dental anomalies, are associated. For a general phenotypic description and a discussion of genetic heterogeneity and nomenclature of Axenfeld-Rieger syndrome, see RIEG1 (180500). Mapping Deletion of 13q14 was described in 2 cases of Rieger syndrome (Akazawa et al., 1981; Stathacopoulos et al., 1987). Phillips et al. (1996) performed linkage analysis of a large 4-generation family and demonstrated that Rieger syndrome was not linked to 4q25 but to markers on 13q14.
The chalky grayish-white particles within the tumor mass correspond to foci of cartilage on histology; the semi-translucent membrane covering the lens in some tumors corresponds to spreading neoplastic cells. [4] [6] Tumor cells form a characteristic diktyomatous pattern, with folded cords and sheets resembling a fisherman's net. [3] In early development of the retina, the medullary epithelial cells acquire polarity, such that a basement membrane associated with the vitreous forms the internal limiting membrane on one side, while terminal bars form the outer limiting membrane on the other side. ... Small lesions can be treated with iodine-125 plaque brachytherapy. [10] Distant metastases and mortality are rare. ... American Journal of Ophthalmology . 130 (3): 364–366. doi : 10.1016/S0002-9394(00)00542-0 . ^ a b c d e Vajaranant, Thasarat S.; Mafee, Mahmood F.; Kapur, Rashmi; Rapoport, Mark; Edward, Deepak P. ... American Journal of Ophthalmology . 133 (6): 841–843. doi : 10.1016/S0002-9394(02)01432-0 . ^ Janss, Anna J.; Yachnis, Anthony T.; Silber, Jeffrey H.; Trojanowski, John Q.; Lee, Virginia M.
Medulloepithelioma of the central nervous system is a rare, primitive neuroectodermal tumor characterized by papillary, tubular and trabecular arrangements of neoplastic neuroepithelium, mimicking the embryonic neural tube, most commonly found in the periventricular region within the cerebral hemispheres, but has also been reported in brainstem and cerebellum. It usually presents in childhood with headache, nausea, vomiting, facial nerve paresis, and/or cerebellar ataxia, and typically has a progressive course, highly malignant behavior and poor prognosis. Hearing and visual loss have also been observed.
Histologically, medulloepithelioma resemble a primitive neural tube and with neuronal, glial and mesenchymal elements. [8] [9] Flexner-Wintersteiner rosettes may also be observed. [10] Immunohistochemically , neural tube-like structures are vimentin positive in the majority of medulloepitheliomas. [11] Poorly differentiated medulloepitheliomas are vimentin negative.
There is evidence that in some families, HPE is inherited ( autosomal dominant as well as autosomal or X-linked recessive inheritance ). [10] [11] [12] Features consistent with familial transmission of the disease (e.g., a single central maxillary incisor ) should be carefully assessed in parents and family members. [13] Non-genetic factors [ edit ] Numerous possible risk factors have been identified, including gestational diabetes , transplacental infections (the " TORCH complex "), first trimester bleeding , and a history of miscarriage . [6] [14] As well, the disorder is found twice as often in female babies. [14] However, there appears to be no correlation between HPE and maternal age . [14] There is evidence of a correlation between HPE and the use of various drugs classified as being potentially unsafe for pregnant and lactating mothers. ... Current Opinion in Genetics & Development . 10 (3): 262–9. doi : 10.1016/s0959-437x(00)00084-8 . ... Archived from the original on 2009-05-14. ^ Armand Marie Leroi , Mutants : On the Form, Varieties and Errors of the Human Body , 2003, Harper Perennial, London. ISBN 0-00-653164-4 ^ The Carter Center for Research in holoprosencephaly [1] and [2] Archived 2008-11-21 at the Wayback Machine ^ Hong M, Srivastava K, Kim S, Allen BL, Leahy DJ, Hu P, Roessler E, Krauss RS, Muenke M (2017) BOC is a modifier gene in holoprosencephaly. ... Human Genetics . 125 (1): 95–103. doi : 10.1007/s00439-008-0599-0 . PMC 2692056 . PMID 19057928 . ^ Tekendo-Ngongang C, Muenke M, Kruszka P (1993). ... American Journal of Medical Genetics . 102 (1): 1–10. doi : 10.1002/1096-8628(20010722)102:1<1::aid-ajmg1336>3.0.co;2-u .
Brain imaging showed right hemisphere cerebral volume loss and dilatation of the right lateral ventricle with diffuse thin cortical mantle, atrophy of the right hippocampus, and a thin corpus callosum. Holoprosencephaly 10 Roessler et al. (2009) reported a girl with seizures, developmental delay, midline cleft lip/palate and mild decortication who was diagnosed as having an HPE sequence with normal CT scan. ... The deletion breakpoints in the patient reported by Wat et al. (2011) allowed definition of a 2.2-Mb minimal deleted region for congenital diaphragmatic hernia on chromosome 1q41-q42 (223,073,839 to 225,318,623, GRCh37), which contains 15 genes including DISP1, but not including HLX (142995). Filges et al. (2010) reported a 10-month-old girl with developmental delay, midline defects, and agenesis of the corpus callosum associated with a de novo 5.5-Mb deletion of chromosome 1q42.
A number sign (#) is used with this entry because of evidence that holoprosencephaly-4 (HPE4) is caused by heterozygous mutation in the TGIF gene (602630) on chromosome 18p11. For phenotypic information and a general discussion of genetic heterogeneity in holoprosencephaly, see HPE1 (236100). Cytogenetics Johnson and Bachman (1976) described a normal female who appeared to have a nonreciprocal translocation from the short arm of one chromosome 18 to the long arm of a chromosome 12. She gave birth to a cebocephalic child whose karyotype included an 18p- chromosome. The association of loss of 18p with holoprosencephaly was suggested by the patient reported by Munke et al. (1988); cytogenetic and molecular studies indicated a Y/18 translocation with loss of 18p and distal Yq material in a holoprosencephalic fetus.
A number sign (#) is used with this entry because holoprosencephaly-11 (HPE11) is caused by heterozygous mutation in the CDON gene (608707) on chromosome 11q24. For a general phenotypic description and a discussion of genetic heterogeneity of holoprosencephaly, see HPE1 (236100). Clinical Features Bae et al. (2011) reported 4 unrelated patients with HPE11. One patient had agenesis of the corpus callosum, hypotelorism, growth hormone deficiency, global developmental delay, and thick eyebrows with synophrys. Another had agenesis of the corpus callosum, alobar HPE, hypotelorism, cleft lip/palate, and absent columella; absent pituitary and polysplenia were noted in this patient at autopsy.
For a phenotypic description and a discussion of genetic heterogeneity of holoprosencephaly, see HPE1 (236100). Clinical Features Levin and Surana (1991) described holoprosencephaly in association with an interstitial deletion of chromosome 14q11.1-q13. Parental karyotypes were normal. The white female, born to nonconsanguineous young parents after an uncomplicated pregnancy, showed hypotelorism, lack of nasal bridge, flattened nasal tip with no visible septum, wide midline cleft of lip and hard palate, and ptosis of the left upper eyelid. Axial CT scan of the head was interpreted as showing semilobar holoprosencephaly. The infant died at 8 days of age. Kamnasaran et al. (2005) reported 6 patients with HPE and interstitial deletions on proximal chromosome 14q: 1 had alobar HPE and 5 had lobar HPE.
For phenotypic information and a general discussion of genetic heterogeneity in holoprosencephaly (HPE), see HPE1 (236100). Clinical Features Lehman et al. (2001) described a female infant who survived for 5.5 hours after delivery at 33 weeks' gestation. Autopsy showed a lobar variant of holoprosencephaly. Cytogenetics By cytogenetic analysis in an infant with a lobar variant of holoprosencephaly, Lehman et al. (2001) identified a 2q37.1-q37.3 deletion. This case represented the fourth reported case of HPE associated with partial monosomy 2q37 and the first with an apparently isolated 2q37 deletion. Lehman et al. (2001) suggested that the deleted segment may contain yet another locus, here designated HPE6, which, when disrupted, can lead to brain malformations within the HPE spectrum.
Nonsyndromic holoprosencephaly is an abnormality of brain development that also affects the head and face. Normally, the brain divides into two halves (hemispheres ) during early development. Holoprosencephaly occurs when the brain fails to divide properly into the right and left hemispheres. This condition is called nonsyndromic to distinguish it from other types of holoprosencephaly caused by genetic syndromes, chromosome abnormalities, or substances that cause birth defects (teratogens). The severity of nonsyndromic holoprosencephaly varies widely among affected individuals, even within the same family.
Holoprosencephaly is an abnormality of brain development in which the brain doesn't properly divide into the right and left hemispheres. The condition can also affect development of the head and face. There are 4 types of holoprosencephaly, distinguished by severity. From most to least severe, the 4 types are alobar, semi-lobar, lobar, and middle interhemispheric variant (MIHV). In general, the severity of any facial defects corresponds to the severity of the brain defect. The most severely affected people have one central eye (cyclopia) and a tubular nasal structure (proboscis) located above the eye.
The patients were part of a larger cohort of 10 patients with genetically confirmed HPE. ... Mapping Muenke et al. (1993) performed linkage studies in 10 families with autosomal dominant HPE.
A number sign (#) is used with this entry because of evidence that holoprosencephaly-7 (HPE7) is caused by heterozygous mutation in the PTCH1 gene (601309) on chromosome 9q22. For phenotypic information and a general discussion of genetic heterogeneity in holoprosencephaly, see HPE1 (236100). Description Holoprosencephaly (HPE) is the most commonly occurring congenital structural forebrain anomaly in humans. HPE is associated with mental retardation and craniofacial malformations. Considerable heterogeneity in the genetic causes of HPE has been demonstrated (Ming et al., 2002).
A number sign (#) is used with this entry because of evidence that solitary median maxillary central incisor (SMMCI) and SMMCI syndrome are caused by heterozygous mutation in the Sonic hedgehog gene (SHH; 600725) on chromosome 7q36. Clinical Features Rappaport et al. (1976, 1977) reported 7 unrelated patients with single (unpaired) deciduous and permanent maxillary central incisors and short stature. Five of them had isolated growth hormone deficiency. The other 2 had normal growth hormone responses but were short of stature. No similar or possibly related abnormalities were present in the 7 families. Rappaport et al. (1976) used the term monosuperoincisivodontic dwarfism to describe the association of short stature and solitary incisor.
By detailed ophthalmologic examination of 10 patients with genetically confirmed HPE, Pineda-Alvarez et al. (2011) found that all 10 had at least 2 subtle ophthalmologic anomalies, including refractive errors, microcornea, microphthalmia, astigmatism, blepharoptosis, strabismus, and coloboma.
A rare complex brain malformation characterized by incomplete cleavage of the prosencephalon, and affecting both the forebrain and face and resulting in neurological manifestations and facial anomalies of variable severity. Epidemiology Prevalence is estimated to be 1/10,000 live and still births and 1/250 conceptuses, with worldwide distribution. Clinical description Three classical forms of holoprosencephaly (HPE) of increasing severity are described based on the degree of anatomical separation: lobar, semi-lobar and alobar HPE. Milder subtypes include midline interhemispheric variant and septopreoptic HPE. There is, however, a continuous spectrum of abnormal separation of the hemispheres that extends from aprosencephaly/atelencephaly, the most severe end of the spectrum, to microform HPE, a less severe midline defect without the typical HPE brain characteristics.
Black Cats & Four-Leaf Clovers . New York: Penguin Books. ISBN 978-0-399-53609-0 . [ page needed ] ^ Barondess MacLean, Barbara. ... New York: Clarion Books. p. 7 . ISBN 0-618-09642-6 . ^ a b c d "Notable Caul Bearers - Arts" . ... Fourth Estate, 2013, p. 90. ISBN 978-0-00-721395-5 . ^ The Siege of Krishnapur [ permanent dead link ] New York Review Books ^ D.P. Morgalis, Freud and his Mother . Pep-web.org. Retrieved on 2011-10-15. ^ Giles, John (2010). A Football Man: The Autobiography . ... Vincent Millay. Random House, 2002, p. 18. ISBN 0-375-76081-4 . ^ Woodburn, Kim (7 September 2006).
Human African Trypanosomiasis (HAT), also called sleeping sickness, is a vector-borne parasitic disease caused by a protozoa of the Trypanosoma genus transmitted by the bite of a tsetse fly (genus Glossina ), that is found under its chronic form (average duration of 3 years) in western and central Africa (in case of the T. brucei gambiense sub-species), and under its acute form (lasting from few weeks to 6 months) in eastern and southern Africa (in case of the T. brucei rhodesiense sub-species). HAT comprises an initial hemo-lymphatic stage characterized by fever, weakness, musculoskeletal pain, anemia, and lymphadenopathy, along with dermatologic, cardiac and endocrine complications or hepatosplenomegaly, followed by a meningo-encephalitic stage characterized by neurologic involvement (sleep disturbances, psychiatric disorders, seizures) that progresses, in the absence of treatment, towards a fatal meningoencephalitis.
