| RV | random variable; rat virus; Rauscher virus; rectovaginal; reinforcement value; renal vein; residual ... |
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| urticarial vasculitis | Cutaneous lesions resembling urticaria but lasting more than 24 hours, with biopsy findings of leukocytoclastic vasculitis and variable systemic changes, usually with hypocomplementemia. Synonym: hypocomplementemic vasculitis. (05 Mar 2000) |
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| leukocytoclastic vasculitis | Cutaneous acute vasculitis characterised clinically by palpable purpura, especially of the legs, and histologically by exudation of the neutrophils and sometimes fibrin around dermal venules, with nuclear dust and extravasation of red cells; may be limited to the skin or involve other tissues as in Henoch-Schonlein purpura. See: cutaneous vasculitis. Origin: G. Leukos, white, + kytos, cell, + klastos, broken, fr. Klao, to break (05 Mar 2000) |