Livedo reticularis
Purplish discoloration of the skin due to reduced blood flow
Livedo reticularis
Livedo reticularis is a common skin finding consisting of a mottled reticulated vascular pattern that appears as a lace-like purplish discoloration of the skin. The discoloration is caused by reduction in blood flow (ischemia) through the arterioles that supply the cutaneous capillaries, resulting in deoxygenated blood showing as blue discoloration (cyanosis). This can be a secondary effect of a condition that increases a person's risk of forming blood clots (thrombosis), including a wide array of pathological and nonpathological conditions. Examples include hyperlipidemia, microvascular hematological or anemia states, nutritional deficiencies, hyper- and autoimmune diseases, and drugs/toxins. The condition may be normal or related to more severe underlying pathology. Its differential diagnosis is broadly divided into possible blood diseases, autoimmune (rheumatologic), cardiovascular diseases, cancers, and endocrine disorders. It can usually (in 80% of cases) be diagnosed by biopsy. It...
Read on Wikipedia · Image Nantsupawat T et al, CC BY-SA 3.0
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