title: CT visualization of ruptured berry aneurysm within hematoma: the flip-flop sign.
abstract: Postcontrast CT of the head may be a useful screening technique for identifying an aneurysm within an intracerebral hematoma. This could avoid unnecessary angiography with its attendant morbidity in inoperable situations and obviate initial arteriography in patients whose surgery is to be delayed.
mesh_terms: D000328:Adult; D002543:Cerebral Hemorrhage / Q000000981:diagnostic imaging*; D006406:Hematoma / Q000000981:diagnostic imaging*; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D012422:Rupture, Spontaneous; D014057:Tomography, X-Ray Computed