Pigmented purpuric dermatosis associated with primary antiphospholipid syndrome.

Pigmented purpuric dermatosis (PPD) is a group of chronic disorders characterized by the extravasation of erythrocytes and marked hemosiderin deposits in the dermis. Schamberg disease is a subtype of pigmented purpuric dermatosis in which nonpalpable purpura is prominent on the lower extremities. No cases of primary antiphospholipid syndrome and pigmented purpuric dermatosis have so far been reported in the literature. We herein report a case of pigmented purpuric dermatosis associated with primary antiphospholipid syndrome.