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What is a Germ Cell Tumor? A germ cell tumor forms from germ cells, which are embryonic cells that develop into reproductive organs. Germ cell tumors primary occur in young people between the ages of 11 and 30. These tumors can be either benign or malignant.
Germ cell tumors may be cancerous (malignant) or noncancerous (benign). Although germ cells are usually in the reproductive organs, these cells can sometimes travel to other parts of the body and cause tumors, called extragonadal germ cell tumors. Areas where germ cell tumors can occur include the following: Ovaries. Testicles. Neck. Chest.
Feb 3, 2023 · Key Points. Childhood extracranial germ cell tumors form from germ cells in parts of the body other than the brain. Childhood extracranial germ cell tumors may be benign or malignant. Childhood extracranial germ cell tumors are grouped as gonadal or extragonadal extracranial tumors. Gonadal germ cell tumors.
