title: Mucocele involving the anterior clinoid process: MR and CT findings.
abstract: We report two patients with surgically proved mucoceles involving the anterior clinoid process. One patient had a mucocele of an Onodi cell and the other had a mucocele isolated to the anterior clinoid process. The MR signal was increased on both T1- and T2-weighted images in the first patient but was isointense on both sequences in the second patient, a finding that resulted in misdiagnosis. The developmental and anatomic features, as well as the diagnostic pitfalls, are discussed.
authors: Department of Diagnostic Imaging, Tan Tock Seng Hospital, Singapore.
authors: C C
authors: CC
authors: Lim
authors: W P
authors: WP
authors: Dillon
authors: M W
authors: MW
authors: McDermott
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D009078:Mucocele / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging; D013100:Sphenoid Bone; D013101:Sphenoid Sinus / Q000000981:diagnostic imaging / Q000473:pathology; D015524:Sphenoid Sinusitis / Q000150:complications / Q000175:diagnosis / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed