Male breast hemangioma--a rare entity: a case report and review of the literature.

We report the case of a 77-year-old man with a very rare breast tumor: hemangioma. The clinical examination found a large (6 cm diameter) lump and mammography revealed a well-defined high-density lesion with lobulated contour. Simple mastectomy was performed. The histology confirmed the diagnosis of benign hemangioma. There has been no local recurrence after 9 years of follow-up. There is very little literature on this type of tumor in men. Generally hemangiomas are large and ultrasound and magnetic resonance imaging (MRI) are useful for the diagnosis. The important differential diagnosis with angiosarcoma is based on specific histologic patterns. Moreover, malignant transformation of hemangioma is rare, but possible.