Case: A 32-year-old Man With a Left Testicular Mass

A 32-year-old Caucasian man was diagnosed with a left 1.2 cm solid testicular mass during evaluation of new gynecomastia (see image). He underwent a computed tomography scan of the chest, abdomen, and pelvis that did not demonstrate evidence of retroperitoneal lymphadenopathy and his tumor markers (AFP, B-HCG, LDH) were within normal limits.