Visceral intravascular capillary hemangioma.

In the course of routine pathologic examination of an ovarian serous cystadenoma excised from a 35-year-old woman, an intravascular mass in the cyst capsule was noted. Histologically, this was found to be an intravenous capillary hemangioma. To our knowledge, no such lesion has been previously reported. The relationship of this lesion to intravenous pyogenic granuloma and features by which the two may be distinguished are discussed. Other primary intravascular endothelial tumors are briefly reviewed.