[Leydig cell tumor. Case report and review of the literature].

Objective: To report a new case of the rare Leydig cell tumor, and to perform bibliographic review.

Methods: We report the case of a 38-year-old male with the clinical and ultrasound diagnosis of testicular tumor, and normal hormonal and extension studies. He underwent inguinal radical orchyectomy and the pathology report of the specimen showed a Leydig cell tumor. It was staged as T1N0M0, not receiving any further treatment with chemotherapy or radiotherapy. Five years after surgery there is no evidence of disease on follow-up.

Results: The patient does not show evidence of recurrence after chest x-rays, abdominal-pelvic CT scan, ultrasound of the contralateral testis, and tumor markers.

Conclusions: We recommend a long-term follow-up with contralateral testicle ultrasound, CT scan, chest x-ray, and tumor markers.