Two Years of Gynecomastia Caused by Leydig Cell Tumor

Abstract EN

Gynecomastia is a common incidental finding in males that can be caused by various benign or malignant diseases.

In rare cases, it results from Leydig cell tumors, a rare entity accounting for 3% of all testicular neoplasms.

Some of them are hormonally active but seldom cause symptomatic endocrine disturbance.

Here we report on a 32-year-old male presenting with gynecomastia which he had already been suffering from for two years.

Although he had been seen by three other specialists, including a urologist, none of them found the small mass in the upper pole of his right testis.

We decided to perform testis-sparing surgery which confirmed the diagnosis of a hormonally active Leydig cell tumor.

During follow-up, hormonal status normalized, and gynecomastia began to resolve.