27-Year-Old Man Presents With an Anterior Mediastinal Mass

Poll

A 27-year-old man is found to have an anterior mediastinal mass. A biopsy of the mass is performed. What is your diagnosis?

A 27-year-old man is found to have an anterior mediastinal mass. A biopsy of the mass is performed, and the histology image is shown below.

What is your diagnosis?

A. Thymoma
B. Melanoma
C. Lymphoma
D. Seminoma

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