Nevi angiomatosi are new growths, mostly congenital, and are composed of blood vessels. They are likely to occur any place on the surface of the body. Only four cases of nevus angiomatosus (vinemark) of the ear-drum have been recorded in the literature, and all of these have been continuous with more or less angioma of the external auditory meatus and of the face. In 1889, Wagenhaeuser1 observed a large angioma which covered the right side of the face and extended into the external auditory meatus and across the ear-drum. Peters2 presented a similar case at the Otological Society of London, and Haug3 described a case of nevus angiomatosus of the external auditory meatus and of the upper posterior quadrant of the ear-drum. In the case reported by Haug, the color of the angioma became much darker when the intracranial pressure was increased. The fourth similar case was