Leydig cell tumour

Leydig cell tumour
Other namesTesticular interstitial cell tumour
Histopathology of a Leydig cell tumor, high magnification, H&E stain, showing typical features.
SpecialtyOncology, endocrinology 

Leydig cell tumour, also Leydig cell tumor (US spelling), (testicular) interstitial cell tumour and (testicular) interstitial cell tumor (US spelling), is a member of the sex cord-stromal tumour group of ovarian and testicular cancers. It arises from Leydig cells. While the tumour can occur at any age, it occurs most often in young adults. However, in women it tends to happen after menopapuse.

A Sertoli–Leydig cell tumour is a combination of a Leydig cell tumour and a Sertoli cell tumour from Sertoli cells.