title: Intraosseous petrous apex neuroma: CT findings.
abstract: An avascular, contrast enhancing intraosseous petrous apex mass was discovered on CT in a patient with prior colonic carcinoma and acute myelocytic leukemia. A normal bone scan made metastasis unlikely and surgery revealed a neuroma. The differential diagnosis is discussed.
mesh_terms: D006801:Humans; D008297:Male; D008875:Middle Aged; D009442:Neurilemmoma / Q000000981:diagnostic imaging / Q000473:pathology; D009463:Neuroma / Q000000981:diagnostic imaging* / Q000473:pathology; D010579:Petrous Bone / Q000000981:diagnostic imaging* / Q000473:pathology; D012888:Skull Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed