title: Computed tomography and magnetic resonance imaging diagnosis of thymic cyst.
abstract: A case of mediastinal thymic cyst evaluated by computed tomography and magnetic resonance imaging is presented. The anterior mediastinal mass was well-demarcated and measured 10 Hounsfield units on the computed tomographic scan. The lesion showed intermediate signal intensity on T1-weighting and became hyperintense on T2-weighted images. These computed tomography and magnetic resonance imaging features suggested a cystic structure, which proved to be a benign thymic cyst on pathologic examination.
authors.affiliation: Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Medical Institutions, Baltimore, Maryland.
authors.forename: D S
authors.initials: DS
authors.lastname: Merine
authors.forename: E K
authors.initials: EK
authors.lastname: Fishman
authors.forename: E A
authors.initials: EA
authors.lastname: Zerhouni
mesh_terms: D002648:Child; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008476:Mediastinal Cyst / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D014057:Tomography, X-Ray Computed