The infrequency of the occurrence of the associated condition of nevus flammeus with increased intra-ocular tension and the extreme rarity of the presence of a calcified vascular growth in the occipital lobe, with resulting right homonymous hemianopia, prompt me to record the following case as one that may prove of interest. REPORT OF CASE History.—B. M., aged 26, applied for treatment at the Knapp Clinic on Dec. 15, 1931, for pain over his left eye, with blurring of vision for the preceding three weeks. The left side of his face presented a nevus flammeus, extending from the hair to the lips, down the median line of his forehead and nose and outward on a level with his lower lip, reaching to the lobe of the left ear below and to the hair on the left side of his head. He also had vascular changes on his hard palate