title: Ewing sarcoma of the small intestine.
abstract: This report describes a rare case of Ewing sarcoma (ES) of the small intestine. The patient was a 9-year-old girl with progressive abdominal distension. Computed tomography showed a large mass in the small bowel. Histopathologic examination of the resected tumor showed ES with typical histologic, immunohistochemical, and ultrastructural features. The tumor recurred in the pelvic cavity 18 months after the original surgery. Molecular study of the recurrent tumor confirmed a diagnostic EWS-FLI1 gene fusion. This patient illustrates the unique occurrence of ES in the small intestine.
authors.affiliation: Department of Pathology, The University of Hong Kong, Queen Mary Hospital, Pokfulam. whshek@hkucc.hku.hk
authors.forename: T W
authors.initials: TW
authors.lastname: Shek
authors.forename: G C
authors.initials: GC
authors.lastname: Chan
authors.forename: P L
authors.initials: PL
authors.lastname: Khong
authors.forename: L P
authors.initials: LP
authors.lastname: Chung
authors.forename: A N
authors.initials: AN
authors.lastname: Cheung
mesh_terms: D002648:Child; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D007413:Intestinal Mucosa / Q000473:pathology; D007414:Intestinal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D007421:Intestine, Small / Q000000981:diagnostic imaging / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D010388:Pelvis / Q000473:pathology; D012512:Sarcoma, Ewing / Q000000981:diagnostic imaging / Q000473:pathology*; D014057:Tomography, X-Ray Computed
chemical_list: D019786:Gadolinium DTPA