A fetus is made from a sperm cell and an egg cell. Germ cell tumors (GCTs) are also known as germ cell cancer. Germ cells later turn into either sperm in the testicles or eggs in the ovaries. Sex cord ...

The type of cancer depends on which type of cell it started in. Knowing the type helps your doctor decide which treatment you need. Most testicular cancers are a type called germ cell tumours. The 2 ...