Sneddon syndrome Other names Ehrmann-Sneddon syndrome, Livedo racemosa-cerebrovascular accident syndrome, Livedo reticularis-cerebrovascular accident syndrome [1] This condition is inherited in an autosomal recessive manner [2] Specialty Rheumatology Sneddon's syndrome [1] is a form of arteriopathy characterized by several symptoms, including: Severe, transient neurological symptoms or stroke Livedo reticularis , or livedo racemosa Contents 1 Signs and symptoms 2 Pathogenesis 3 Diagnosis 4 Treatment 5 Epidemiology 6 History 7 See also 8 References 9 Further reading 10 External links Signs and symptoms [ edit ] Sneddon's syndrome generally manifests with stroke or severe, transient neurological symptoms, and a skin rash ( livedo reticularis ). Livedo reticularis appears as a bluish-purple, netlike mottling of the skin. Sneddon's syndrome may instead present with livedo racemosa , which involves larger, less organized patches of bluish-purple mottling of the skin. Both are generally found first in the extremities, both worsen in cold and either may occur without Sneddon's Syndrome or any other systemic disease. [ citation needed ] Sneddon's Syndrome can be characterized by: transient amnesia , transient aphasia , palsy , headaches , hypertension, transient ischemic attacks (TIA), stroke , [3] coronary disease and dementia. [4] The skin manifestations may precede the neurologic symptoms by years. [3] Pathogenesis [ edit ] Sneddon's syndrome is a progressive, noninflammatory arteriopathy leading to the characteristic skin condition and to cerebrovascular problems, including stroke, transient ischemic attack (TIA), severe but transient neurological symptoms thought to be caused by cerebral vasospasm, coronary disease and early-onset dementia. Progressive compromise of arterial linings in Sneddon's produces clotting, for which high-dose warfarin is most commonly prescribed, and can also cause the development of systemic arterial plaque when cholesterol levels are normal. [ citation needed ] Diagnosis [ edit ] There are no diagnostic tests on which all Sneddon's patients will have abnormal results, although brain MRI and skin biopsy are often abnormal.