Acral arteriovenous tumor.
A unique, superficial, lobulated, benign vascular tumor of the skin, found in the acral areas of adult males, is described. The combination of three different elements--arterial, venous, and transitional vascular channels--make up the predominant histologic features of this tumor. The transition of fibromuscular channels indicates a venous lesion, but the acral location of the lesions and the structure and staining characteristics suggest that the lesion is a hamartomatous proliferation of the Sucquet-Hoyer canal of the true glomus.
D000328:Adult; D000368:Aged; D006801:Humans; D008297:Male; D008875:Middle Aged; D009383:Neoplasms, Vascular Tissue / Q000473:pathology; D012867:Skin / Q000098:blood supply / Q000473:pathology; D012878:Skin Neoplasms / Q000473:pathology