Leydig Cell Tumor, also known as leydig cell neoplasm, is related to sertoli-leydig cell tumor and gynecomastia. An important gene associated with Leydig Cell Tumor is CALB2 (Calbindin 2), and among its related pathways/superpathways are Metabolism of steroids and Glucose / Energy Metabolism. The drugs Bevacizumab and Ipilimumab have been mentioned in the context of this disorder. Affiliated tissues include ovary and testis, and related phenotypes are Increased shRNA abundance (Z-score > 2) and nervous system