Familial multinodular goiter

Sertoli–Leydig cell tumour is a group of tumors composed of variable proportions of Sertoli cells, Leydig cells, and in the case of intermediate and poorly differentiated neoplasms, primitive gonadal stroma and sometimes heterologous elements.Sertoli–Leydig cell tumour (a sex-cord stromal tumor), is a testosterone-secreting ovarian tumor and is a member of the sex cord-stromal tumour group of ovarian and testicular cancers. The tumour occurs in early adulthood (not seen in newborn), is rare, comprising less than 1% of testicular tumours. [Source: Wikipedia ]