title: Case report: Periosteal Ewing's sarcoma: case report and literature review.
abstract: Ewing's sarcoma is a round-cell tumor that arises most often in a medullary cavity. This neoplasm is uncommon in a subperiosteal location. We report a new case of a 12-year-old boy with a periosteal Ewing's sarcoma, located in the femur, who was treated by cortical segmental resection associated with chemotherapy. Two years after surgery the patient was free of disease. In reviewing the literature of 29 cases, it seems the prognosis is better in periosteal compared with intramedullary Ewing's sarcoma.
authors.affiliation: Department of Pathology, Trauma and Orthopaedic Hospital, National Institute of Cancer, Rio de Janeiro, Brazil.
authors.forename: Ierecê Lins
authors.initials: IL
authors.lastname: Aymoré
authors.forename: Walter
authors.initials: W
authors.lastname: Meohas
authors.forename: Ana Luzia
authors.initials: AL
authors.lastname: Brito de Almeida
authors.forename: Danielle
authors.initials: D
authors.lastname: Proebstner
mesh_terms: D001707:Biopsy, Needle; D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000628:therapy; D016025:Bone Transplantation / Q000379:methods; D017024:Chemotherapy, Adjuvant; D002648:Child; D003131:Combined Modality Therapy; D005269:Femur; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D023821:Limb Salvage / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D009367:Neoplasm Staging; D010521:Periosteum / Q000473:pathology*; D049268:Positron-Emission Tomography; D018570:Risk Assessment; D012512:Sarcoma, Ewing / Q000000981:diagnostic imaging / Q000473:pathology* / Q000628:therapy; D016896:Treatment Outcome