Epidural mastoid pneumatocele.
The authors report a case of a gas-filled epidural cyst communicating with the mastoid air cells, causing fluctuating but progressive amaurosis. No prior report of a similar finding could be found in the literature.
D004388:Dura Mater / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008416:Mastoid / Q000000981:diagnostic imaging; D008875:Middle Aged; D011007:Pneumocephalus / Q000000981:diagnostic imaging*; D011859:Radiography