title: Localized extraosseous Ewing's sarcoma of the chest wall resected by video-assisted thoracoscopic surgery.
abstract: Extraosseous Ewing's sarcoma (ES) is a small round cell tumor arising in soft tissue that was undifferentiated histologically from classic ES of bone. It frequently affects children and adolescents, with an unfavorable prognosis. Herein, we report a case of localized extraosseous ES of the chest wall resected by video-assisted thoracoscopic surgery (VATS). An asymptomatic 40-year-old man presented with an abnormal shadow on chest radiography. Chest computed tomography showed a 1.5-cm solid tumor on the chest wall. VATS was undertaken for the undiagnosed tumor. Thoracoscopic findings showed a hemispheric tumor with a smooth surface on the chest wall. The tumor was diagnosed with an extraosseous ES by pathological and cytogenetic examinations. As adjuvant therapy, the patient was treated with radiotherapy, followed by multiagent chemotherapy. There have been few reported cases in which VATS was used for extraosseous ES of chest wall, so our case was thought to be very rare.
authors.affiliation: Department of Surgery, Kagawa Prefectural Central Hospital, 5-4-16 Ban-cho, Takamatsu, Kagawa, 760-8557, Japan. misaotmd@ybb.ne.jp
authors.forename: Takahiko
authors.initials: T
authors.lastname: Misao
authors.forename: Takeshi
authors.initials: T
authors.lastname: Yoshikawa
authors.forename: Motoi
authors.initials: M
authors.lastname: Aoe
authors.forename: Masashi
authors.initials: M
authors.lastname: Furukawa
authors.forename: Satoko
authors.initials: S
authors.lastname: Nakamura
authors.forename: Kimihiro
authors.initials: K
authors.lastname: Kawakami
mesh_terms: D000328:Adult; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D017024:Chemotherapy, Adjuvant; D020732:Cytogenetic Analysis; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D018714:Radiotherapy, Adjuvant; D012512:Sarcoma, Ewing / Q000235:genetics / Q000473:pathology / Q000601:surgery*; D013899:Thoracic Neoplasms / Q000235:genetics / Q000473:pathology / Q000601:surgery*; D020775:Thoracic Surgery, Video-Assisted; D035441:Thoracic Wall / Q000473:pathology / Q000601:surgery*; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome