“…1,2 It is generally characterized by purpuric
macules, papules or plaques on the dorsum of the feet and the malleolus. It is
considered a clinical and histological simulator of Kaposi's sarcoma (KS) and may
present proliferation of endothelial cells, neoformation of thick-walled vessels,
frequently in lobular arrangement and surrounded by pericytes in the dermis,
extravasation of red blood cells, deposition of hemosiderin pigment, dermal fibrosis,
small thrombi in the in the lumen of blood vessels and a superficial perivascular
infiltrate with lymphocytes, histiocytes and occasional plasma cells.…”