Print OverviewGerm cell tumors are growths of cells that form from reproductive cells. The tumors may be cancerous or not cancerous. Most germ cell tumors occur in the testicles or the ovaries. Some germ cell tumors occur in other areas of the body, such as the abdomen, brain and chest, though it's not clear why. Germ cell tumors that occur in places other than the testicles and ovaries (extragonadal germ cell tumors) are very rare. Treatment options for germ cell tumors may include surgery to remove the tumor, chemotherapy with drugs that kill cancer cells and radiation therapy with powerful energy beams.Products & ServicesA Book: Mayo Clinic Family Health BookNewsletter: Mayo Clinic Health Letter — Digital EditionShow more products from Mayo Clinic Clinical trials Explore Mayo Clinic studies testing new treatments, interventions and tests as a means to prevent, detect, treat or manage this condition. By Mayo Clinic Staff Germ cell tumors care at Mayo Clinic Request an appointment Doctors & departments June 06, 2023 Print Show references National Cancer Institute. Childhood central nervous system germ cell tumors treatment (PDQ). https://www.cancer.gov/types/brain/patient/child-cns-germ-cell-treatment-pdq. Accessed June 2, 2021. National Cancer Institute. Childhood extracranial germ cell tumors treatment (PDQ). https://www.cancer.gov/types/extracranial-germ-cell/patient/germ-cell-treatment-pdq. Accessed June 2, 2021. National Cancer Institute. Extragonadal germ cell tumors treatment (PDQ). https://www.cancer.gov/types/extragonadal-germ-cell/patient/extragonadal-treatment-pdq. Accessed June 2, 2021. Cancer.Net. Germ cell tumor — Childhood. https://www.cancer.net/cancer-types/germ-cell-tumor-childhood/view-all. Accessed June 11, 2021. Related Products & Services A Book: Mayo Clinic Family Health Book Newsletter: Mayo Clinic Health Letter — Digital Edition Show more products and services from Mayo Clinic Germ cell tumorsSymptoms&causesDoctors&departmentsCare atMayoClinic Advertisement Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission. Advertising & Sponsorship Policy Opportunities Ad Choices Mayo Clinic Press Check out these best-sellers and special offers on books and newsletters from Mayo Clinic Press. NEW: Listen to Health Matters Podcast - Mayo Clinic PressNEW: Listen to Health Matters PodcastMayo Clinic on Incontinence - Mayo Clinic PressMayo Clinic on IncontinenceThe Essential Diabetes Book - Mayo Clinic PressThe Essential Diabetes BookMayo Clinic on Hearing and Balance - Mayo Clinic PressMayo Clinic on Hearing and BalanceFREE Mayo Clinic Diet Assessment - Mayo Clinic PressFREE Mayo Clinic Diet AssessmentMayo Clinic Health Letter - FREE book - Mayo Clinic PressMayo Clinic Health Letter - FREE book CON-20167636 Patient Care & Health Information Diseases & Conditions Germ cell tumors