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Abstract

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Article in Japanese

Case Report

An asymptomatic case of Askin tumor with EWS gene translocation

Hideki Miwaa,b  Rie Anazawab  Masaki Suzukib  Yoshihiro Mikib  Kazuhiro Tomitab  Hidenori Nakamurab  Yoshiya Inouec 

aDepartment of Respiratory Medicine, Chiba University School of Medicine
bDepartment of Respiratory Medicine, Seirei Hamamatsu General Hospital
cDepartment of Musculoskeletal Tumor Surgery, Seirei Hamamatsu General Hospital

ABSTRACT

A 21-year-old woman with no symptoms was referred to our hospital because of an abnormal shadow on her chest X-ray. Lung cancer was suspected, but examinations by bronchoscopy did not reach a definitive diagnosis. A CT-guided needle biopsy led to the diagnosis of Askin tumor because small round tumor cells, CD99 expression, and EWS gene translocation were discovered. She was administered systemic chemotherapy and irradiation before wide excision. She now remains free from local recurrence and metastasis.

KEYWORDS

Askin tumor  Ewing sarcoma/PNET  Thoracic wall tumor  Small round tumor cell 

Received 14 Jan 2014 / Accepted 16 May 2014

AJRS, 3(5): 690-694, 2014

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