title: Pitfalls in the radiographic diagnosis of angiofibroma.
abstract: Radiographic findings previously thought pathognomonic for juvenile nasopharyngeal angiofibroma are anterior bowing of the posterior wall of the maxillary antrum on plain films or tomography, and a dense homogeneous blush on angiography. Two patients presented with nasopharyngeal masses which mimicked angiofibroma radiographically: one mass was a lymphoepithelioma and the other was a fibrous tumor. Constitutional symptoms and atypical physical findings should alert the physician to a diagnosis other than juvenile nasopharyngeal angiofibroma.
mesh_terms: D000293:Adolescent; D000328:Adult; D000792:Angiography; D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging; D002533:Cerebral Angiography; D003937:Diagnosis, Differential; D018219:Histiocytoma, Benign Fibrous / Q000098:blood supply / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008443:Maxillary Sinus / Q000000981:diagnostic imaging; D009303:Nasopharyngeal Neoplasms / Q000098:blood supply / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed