title: Thymoma mimicking a thyroid mass.
abstract: Two cases of ectopic cervical thymoma are presented. These cases both manifested as mass lesions at the thoracic inlet, displacing the trachea, and were originally misdiagnosed as thyroid masses. The masses had clinical features similar to those previously reported for cervical thymoma: preponderance in women, benign clinical course, and absence of myasthenic symptoms.
authors.affiliation: Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia 19104.
authors.forename: W T
authors.initials: WT
authors.lastname: Miller
authors.forename: W B
authors.initials: WB
authors.lastname: Gefter
authors.forename: W T
authors.initials: WT
authors.lastname: Miller
mesh_terms: D000368:Aged; D002828:Choristoma / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008875:Middle Aged; D011877:Radionuclide Imaging; D013950:Thymus Gland; D013964:Thyroid Neoplasms / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed