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An unusual case of giant mediastinal teratoma with malignant transformation
Chang Chen1, Hui Zheng, Sen Jiang
1Department of General Thoracic Surgery, Tongji University-Affiliated Shanghai Pulmonary Hospital, Shanghai, China. chenchang@nju.org.cn
Abstract:
Mediastinal teratoma with malignant transformation is extremely rare. It consists of two components: (1) a pre-existing mature teratoma and (2) a nongerm cell malignant tumor. The radiologic appearances are usually straightforward, including a cystic mass and findings suggestive of malignancy. The authors describe an unusual case of giant mediastinal teratoma with malignant transformation in a 59-year-old patient. Radiographically, multiple spherical nodules appeared in the cyst that necessitated differentiation from hydatid disease. Computed tomography, magnetic resonance imaging, and operative and pathologic findings are provided.
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