<unk>  is a skin condition characterized by scaly and eczematous patches, which also have petechiae and hemosiderin staining. It is a lymphocytic capillaritis of unknown cause. Lesions consist of erythematous and purpuric macules which usually begin around the ankles, coalesce, and spread to involve the whole legs, and sometimes the trunk and upper extremities. The lesions are extremely pruritic (itchy) and occasionally lichenified after prolonged scratching. It is also known as "eczematoid purpura" or "eczematoid-like purpura". It was characterized in 1953.
Doucas and Kapetanakis pigmented purpura
Peters-plus syndrome
Koebner phenomenon
Charcot's neurologic triad
Berlin's edema
Donath–Landsteiner hemolytic anemia
Cutis marmorata telangiectatica congenita
Solar purpura