- Livedo reticularis
- A mottled purplish discoloration of the skin. Livedo reticularis can be a normal condition that is simply more obvious when a person is exposed to the cold. Livedo reticularis can also be an indicator of impaired circulation. Livedo reticularis has been reported in association with: Autoimmune diseases such as systemic lupus erythematosus. Abnormal antibodies referred to as phospholipid antibodies. Examples of these antibodies are the cardiolipin antibody and falsely positive testing for syphilis. A syndrome featuring phospholipid antibodies with multiple brain strokes. It is felt that the blood of these patients has a propensity to clot which may predispose to stroke.
* * *livedo re·tic·u·lar·is -ri-.tik-yə-'ler-əs, -'lar- n a condition of the peripheral blood vessels characterized by reddish blue mottling of the skin esp. of the extremities usu. upon exposure to cold
* * *a vascular response to any of various disorders, caused by dilation of the subpapillary venous plexus as a result of both increased blood viscosity and blood vessel changes that delay flow away from the skin. Clinical characteristics include reticular, cyanotic skin surrounding pale central areas on the trunk and limbs, becoming more intense on exposure to cold and often disappearing upon warming. The three main types are cutis marmorata, idiopathic livedo reticularis, and secondary livedo reticularis. Called also l. racemosa.
Medical dictionary. 2011.