Background: A 56-year-old man presented to a urology clinic with a painless left-testicular mass of unknown duration. On physical examination, a firm mass measuring 2 cm x 2 cm and involving the inferior portion of the left epididymis was found. The left testicle, right testicle, and right epididymis looked normal on examination.
Investigations: Assessment of tumor-marker levels, ultrasound examination of the scrotum, Doppler ultrasound examination, surgical exploration, and histologic examination of frozen sections.
Diagnosis: Pure leiomyoma arising from the epididymis.
Management: Complete excision of the mass with its contiguous epididymis, preserving the left testicle and rest of the epididymis.