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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.
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.
. ^ "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 .
Prion pruritus is the intense itching during the prodromal period of the Creutzfeldt–Jakob disease . [1] : 402 See also [ edit ] Pruritus References [ edit ] ^ Freedberg, et al. (2003). Fitzpatrick's Dermatology in General Medicine . (6th ed.). McGraw-Hill. ISBN 0-07-138076-0 . This cutaneous condition article is a stub .
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) .
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).
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.
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).
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.
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).
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.
Elsevier Health Sciences. pp. 362–. ISBN 978-0-443-10408-4 . Retrieved 3 November 2010 . ^ Robert V. ... Carbohydrates: the essential molecules of life . Elsevier. pp. 402–. ISBN 978-0-240-52118-3 . Retrieved 3 November 2010 . ^ Bonten EJ, Wang D, Toy JN, et al.
The Lancet . 156 (4011): 89–95. doi : 10.1016/S0140-6736(00)65681-7 . ^ a b c d Weisse, ME (31 December 2000). ... The Lancet . 357 (9252): 299–301. doi : 10.1016/S0140-6736(00)03623-0 . PMID 11214144 . S2CID 35896288 . ^ Dukes-Filatov disease at Who Named It?
A number sign (#) is used with this entry because of evidence that Axenfeld-Rieger syndrome type 1 (RIEG1) is caused by heterozygous mutation in the homeobox transcription factor gene PITX2 (601542) on chromosome 4q25. Description Axenfeld-Rieger syndrome is an autosomal dominant disorder of morphogenesis that results in abnormal development of the anterior segment of the eye, and results in blindness from glaucoma in approximately 50% of affected individuals (Fitch and Kaback, 1978). Systemic anomalies are associated, including dental hypoplasia, failure of involution of periumbilical skin, and maxillary hypoplasia (Alkemade, 1969). Genetic Heterogeneity of Axenfeld-Rieger Syndrome Linkage studies indicate that a second type of Axenfeld-Rieger syndrome maps to chromosome 13q14 (RIEG2; 601499). A third form of Axenfeld-Rieger syndrome (RIEG3; 602482) is caused by mutation in the FOXC1 gene (601090) on chromosome 6p25.
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.
Greenwood Publishing Group. ISBN 978-0-313-31520-6 , p. 402. ^ Miller, Laura. (2006). ... University of California Press. ISBN 978-0-520-24509-9 ^ Latteier 1998 ^ Buss, David (2019). ... El Rio, TX: Hauck Pub Co. ISBN 978-0-9621797-2-3 . ^ McDonough, Jimmy (2005). ... University of California Press. ISBN 978-0-520-24509-9 ^ Latteier 1998 Further reading [ edit ] Block, Susan (2004). ... The Breast Fetish (pg. 29). Palgrave Macmillan. ISBN 0-312-22129-0 . Glazier, Stephen D. ; Flowerday, Charles (2003).
Trends in Cognitive Sciences . 5 (1): 36–41. doi : 10.1016/S1364-6613(00)01571-0 . PMID 11164734 . S2CID 15092606 . ^ a b Jäncke, Lutz; Beeli, Gian; Eulig, Cornelia; Hänggi, Jürgen (March 2009). ... Sagiv, ed., Synesthesia: Perspectives from Cognitive Neuroscience , Oxford: Oxford University Press , ISBN 0-19-516623-X , pp. 11–33 ^ a b Simner, J.; Ward, J.; Lanz, M.; Jansari, A.; Noonan, K.; Glover, L.; Oakley, D.A. (2005). ... Handbook of Multisensory Processes. Cambridge, MA: MIT Press. ISBN 0-262-03321-6 ^ Steen, Carol. "Quote from Carol Steen Artist and founding member of the American Synesthesia Association in an interview at the Massachusetts Institute of Technology" . ... Ninth IEEE International Symposium on Wearable Computers . pp. 108–113. doi : 10.1109/ISWC.2005.11 . ISBN 0-7695-2419-2 . S2CID 8221450 . Archived from the original (PDF) on 2007-03-29.
Kearney, of Marshall Avenue, Mattoon, reported smelling a strong, sweet odor around 11:00 pm. At first she dismissed the smell, believing it to be from flowers outside of the window, but the odor soon became stronger and she began to lose feeling in her legs. ... 347 Strange Sightings, Incredible Occurrences, and Puzzling Physical Phenomena . Detroit: Visible Ink Press. ISBN 0-8103-9436-7 . ^ a b "At Night in Mattoon" . ... 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" . ... Jacksonville, Ill.: Swamp Gas Book Co. ISBN 978-0-9728605-0-5 . Van Huss, William B. (2017) The Mad Gasser of Botetourt County ISBN 978-1979589246 External links [ edit ] "The Mad Gasser of Mattoon: how the press created an imaginary chemical weapons attack" from Skeptical Inquirer , 7/1/2002 Site with newspaper headlines and a list of victims and locations of incidents
The condition is becoming increasingly common, presenting in patients who are usually fair skinned and middle aged and indulge in golf , tennis , outdoor table tennis, sailing , or other leisure outdoor activities in sunny climates. [1] : 64 [2] : 402 The cause is not known, although there are a few lines of thought on what causes it. ... Andrews' Diseases of the Skin: clinical Dermatology . Saunders Elsevier. ISBN 0-7216-2921-0 . ^ Freedberg, et al. (2003). Fitzpatrick's Dermatology in General Medicine . (6th ed.). McGraw-Hill. ISBN 0-07-138076-0 . ^ Crevits, L. (2006).