Stromal cell tumors have been described as benign in young boys.

Sertoli-Leydig cell tumor is a rare cancer of the ovaries.

This is about 5 to 10 years older than men with other germ cell tumors of the testes.

Wilson thinks it's a small cell tumor, which is hard to locate.

The most common ovarian germ cell tumor is called dysgerminoma.

Epithelial cell tumors start from the cells on the surface of the ovaries.

Malignantislet cell tumors are a rare type of pancreatic cancer.

Giant cell tumors are normally benign, with unpredictable behavior.

The diagnosis of giant cell tumors is based on biopsy findings.

A giant cell tumor is the most common cause, occurring in 19% to 39% of cases.