title: Extraskeletal Ewing sarcoma of the abdominal wall.
abstract: Ewing sarcoma is most commonly a bone tumour which has usually extended into the soft tissues at the time of diagnosis. Exceptionally, this tumour can have an extraskeletal origin. Clinical or imaging findings are non-specific and diagnosis is based on histology. We report a case of an extraskeletal Ewing sarcoma developed in the soft tissues of the abdominal wall in a 35-year-old woman who presented a painful abdominal wall tumefaction. Ultrasongraphy and computed tomography showed a large, well-defined soft tissue mass developed in the left anterolateral muscle group of the abdominal wall. Surgical biopsy was performed and an extraskeletal Ewing sarcoma was identified histologically.
authors.affiliation: Department of Radiology, Mongi Slim Hospital, La Marsa, Tunisia. anisaskri2@yahoo.fr
authors.forename: A
authors.initials: A
authors.lastname: Askri
authors.forename: L Ben
authors.initials: LB
authors.lastname: Farhat
authors.forename: B
authors.initials: B
authors.lastname: Ghariani
authors.forename: A
authors.initials: A
authors.lastname: Rabeh
authors.forename: N
authors.initials: N
authors.lastname: Dali
authors.forename: W
authors.initials: W
authors.lastname: Said
authors.forename: L
authors.initials: L
authors.lastname: Hendaoui
mesh_terms: D034861:Abdominal Wall / Q000473:pathology*; D000328:Adult; D001707:Biopsy, Needle; D017024:Chemotherapy, Adjuvant; D003131:Combined Modality Therapy; D003952:Diagnostic Imaging / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D007813:Laparotomy / Q000379:methods; D009367:Neoplasm Staging; D012512:Sarcoma, Ewing / Q000175:diagnosis* / Q000628:therapy; D012680:Sensitivity and Specificity; D012983:Soft Tissue Neoplasms / Q000175:diagnosis* / Q000628:therapy; D014057:Tomography, X-Ray Computed / Q000379:methods; D018608:Ultrasonography, Doppler