title: Adrenal schwannoma: CT and MRI findings.
abstract: We report a case of adrenal schwannoma, an extremely rare retroperitoneal neoplasm. The patient was a 33-year-old man who presented with an abdominal mass that was discovered at abdominal sonography. Computed tomography showed an 8-cm well-circumscribed homogeneous mass that enhanced slightly after intravenous administration of contrast material. Magnetic resonance imaging showed low signal intensity on T1-weighted images and heterogeneously high signal intensity on T2-weighted images. Although these imaging findings are nonspecific, adrenal schwannomas should be included in the differential diagnosis of solid nonfunctioning adrenal tumors.
authors.affiliation: Department of Radiology, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan. ka-suzz@med.juntendo.ac.jp
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Suzuki
authors.forename: Atsushi
authors.initials: A
authors.lastname: Nakanishi
authors.forename: Yoshihisa
authors.initials: Y
authors.lastname: Kurosaki
authors.forename: Joji
authors.initials: J
authors.lastname: Nogaki
authors.forename: Emi
authors.initials: E
authors.lastname: Takaba
mesh_terms: D000310:Adrenal Gland Neoplasms / Q000175:diagnosis* / Q000473:pathology; D000328:Adult; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009442:Neurilemmoma / Q000175:diagnosis* / Q000473:pathology; D014057:Tomography, X-Ray Computed