[Case of carotid-basilar anastomosis with spina occult bifida occulta and polycythemia].
D000328:Adult; D001488:Basilar Artery / Q000002:abnormalities; D002343:Carotid Artery, Internal / Q000002:abnormalities; D006801:Humans; D008297:Male; D011086:Polycythemia / Q000150:complications*; D016135:Spinal Dysraphism / Q000150:complications*