A 60-year-old man was found to have an anterior mediastinal mass by routine chest X-ray. A fine needle core biopsy showed a mixed population of small lymphocytes and epithelial cells (Fig. 77.1). A thoracotomy biopsy revealed a lobulated tumor (Figs. 77.2 and 77.3).


Needle Core Biopsy Thymic Carcinoma Mucoepidermoid Carcinoma Hematologic Neoplasm Anterior Mediastinal Mass 
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