title: Primary mesenteric tumor with phenotypical features of gastrointestinal stromal tumors.
abstract: We report a case of a primary mesenteric tumor that was discovered in a 71-year-old man. Abdominal US accurately visualized the internal structure of the tumor but failed to determine the site of origin. Computed tomography suggested the mesenteric origin of the tumor before resection. The mass was removed and histopathological examination (including immunohistochemical and ultrastructural studies) was consistent with a primary gastrointestinal stromal tumor (GIST) of the mesentery, a very rare neoplasm scarcely reported in the radiology literature. Clinical, radiological, and pathological findings of this case are presented and the topic of primary mesenteric tumors with phenotypical features of GIST is reviewed.
authors.affiliation: Department of Radiology, La Paz University Hospital, P0 de la Castellana 261, 28046 Madrid, Spain. lgorospes@nexo.es
authors.forename: Luis
authors.initials: L
authors.lastname: Gorospe
authors.forename: Maria José
authors.initials: MJ
authors.lastname: Simón
authors.forename: Francisca
authors.initials: F
authors.lastname: Lima
authors.forename: Isabel
authors.initials: I
authors.lastname: Esteban
authors.forename: Carmen
authors.initials: C
authors.lastname: Madrid
authors.forename: Enrique
authors.initials: E
authors.lastname: Hitos
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D005770:Gastrointestinal Neoplasms / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008643:Mesentery / Q000000981:diagnostic imaging; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis*; D010534:Peritoneal Neoplasms / Q000175:diagnosis*; D012983:Soft Tissue Neoplasms / Q000175:diagnosis; D014057:Tomography, X-Ray Computed; D018084:Ultrasonography, Interventional