Hobnail hemangioma: differential diagnosis of vascular tumors with similar histopathologic findings

Abstract

Hobnail hemangioma(targetoid hemosiderotic hemangiomas) is a benign vascular tumor characterized histologically by abiphasic growth pattern of dilated vascular channels in the superficial dermis lined by prominent hobnail cells and rather narrowneoplastic vessels in deeper dermis. This tumor affects mainly the lower limbs or trunk of male adult. Histopathologically, hobnailhemangioma should be differentiated from a variety of benign to malignant vascular tumors. Herein, we represent a case ofhobnail hemangioma which had been confirmed through the skin biopsy.