Arteriovenous Aneurysm of Great Cerebral Vein and Arteries of Circle of Willis

Arteriovenous aneurysm of the great cerebral vein (Galen) and the arteries of the circle of Willis is so rare that it seems desirable to record an instance of the condition. Only 2 other cases heve been recorded in the literature1and a third 2 is unquestionably a typical example of the disorder. REPORT OF A CASE History. —R. L. V., an 18 year old youth, entered the Jefferson Hospital on May 9, 1944 and died on June 16, 1944. He had had headaches since he was 6 years old and had suffered from them intermittently until his death. They were largely frontal in location, and they occurred at an average frequency of one or two a week. His headaches were at first relieved by acetylsalicylic acid and were not so severe as to interfere with his activities. Two months before entrance into the hospital, however, they became more severe,