Germ cell cancer can develop in children and adults. Researchers don’t know exactly what causes germ cell cancers to form, but they have identified some risk factors. Germ cell tumors are abnormal ...

A nonseminomatous germ cell tumor is a type of testicular cancer that forms in cells that produce sperm. The outlook for people with these types of tumors is positive, especially if diagnosed in the ...

What are germ cell and sex cord stromal cells? Germ cells and sex cord stromal cells form when a fetus (baby) is developing. A fetus is made from a sperm cell and an egg cell. Germ cell tumors (GCTs) ...

Non-seminoma is a type of germ-cell testicular cancer. Treatment may include surgery to remove a testicle, lymph node removal, and chemotherapy. Most cases of testicular cancer develop from germ cells ...