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ABSTRACT: Hobnail hemangioma is a rare benign vascular tumor. It usually develops in young adults as a single, small, well-circumscribed, angiomatous/pigmented, and flat or exophytic lesion and has a distinctive biphasic histopathologic appearance. Lesions commonly affect the trunk and lower and upper extremities, although head and neck involvement has also been described. Until now, only 3 intraoral cases have been reported. The present article reports a case of hobnail hemangioma on the mandibular left gingiva in a 24-year-old male patient. Awareness of this rare entity rests on the differential diagnosis, which includes retiform hemangioendothelioma, patch-stage Kaposi sarcoma, benign lymphangioendothelioma, and well-differentiated angiosarcoma.
Quintessence international (Berlin, Germany: 1985) 07/2008; 39(6):507-10. · 0.73 Impact Factor