Huge mediastinal cystic tumor penetrating the sternum.

Takagishi, Tomoko; Osaki, Toshihiro; Kodate, Mantaro; Ebi, Noriyuki; Oya, Masafumi; Yamamoto, Hidehiko · Ann Thorac Surg · 2010

case_report · Level V

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Abstract

We report a very rare case of a huge anterior mediastinal tumor penetrating the sternum that was diagnosed in a 59-year-old woman. The tumor was completely resected en bloc with the manubrium sterni, and the chest wall defect was closed with a pectoralis major muscle flap. Histologic examination of the cystic mass revealed the diagnosis of a benign mediastinal cystic tumor, most likely a benign cystic mature teratoma.

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