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Disease Profile

Sacrococcygeal Teratoma

Prevalence estimates on Rare Medical Network websites are calculated based on data available from numerous sources, including US and European government statistics, the NIH, Orphanet, and published epidemiologic studies. Rare disease population data is recognized to be highly variable, and based on a wide variety of source data and methodologies, so the prevalence data on this site should be assumed to be estimated and cannot be considered to be absolutely correct.


US Estimated

Europe Estimated

Age of onset





Autosomal dominant A pathogenic variant in only one gene copy in each cell is sufficient to cause an autosomal dominant disease.


Autosomal recessive Pathogenic variants in both copies of each gene of the chromosome are needed to cause an autosomal recessive disease and observe the mutant phenotype.


dominant X-linked dominant inheritance, sometimes referred to as X-linked dominance, is a mode of genetic inheritance by which a dominant gene is carried on the X chromosome.


recessive Pathogenic variants in both copies of a gene on the X chromosome cause an X-linked recessive disorder.


Mitochondrial or multigenic Mitochondrial genetic disorders can be caused by changes (mutations) in either the mitochondrial DNA or nuclear DNA that lead to dysfunction of the mitochondria and inadequate production of energy.


Multigenic or multifactor Inheritance involving many factors, of which at least one is genetic but none is of overwhelming importance, as in the causation of a disease by multiple genetic and environmental factors.


Not applicable



Rare Cancers


A sacrococcygeal teratoma is a tumor that grows at the base of the spine in a developing fetus. It occurs in one in 40,000 newborns and girls are four times more likely to be affected than boys. Though it is usually benign, there is a possibility that the teratoma could become malignant. As such, the recommended treatment of a teratoma is complete removal of the tumor by surgery, performed soon after the birth. If not all of the tumor is removed during the initial surgery, the teratoma may grow back (recur) and additional surgeries may be needed.[1] Studies have found that sacrococcygeal teratomas recur in up to 22% of cases.[2]


The treatment for sacrococcygeal teratoma (SCT) typically involves surgery to remove the tumor. Surgery occurs either in the prenatal period or shortly after delivery. The timing is dependent on the size of the tumor and the associated symptoms.[3]

To learn more about both prenatal and postnatal surgery for SCT, visit the following links from The Children's Hospital of Philadelphia (CHOP)



Support and advocacy groups can help you connect with other patients and families, and they can provide valuable services. Many develop patient-centered information and are the driving force behind research for better treatments and possible cures. They can direct you to research, resources, and services. Many organizations also have experts who serve as medical advisors or provide lists of doctors/clinics. Visit the group’s website or contact them to learn about the services they offer. Inclusion on this list is not an endorsement by GARD.

Organizations Supporting this Disease

    Learn more

    These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.

    Where to Start

    • The National Organization for Rare Disorders (NORD) has a report for patients and families about this condition. NORD is a patient advocacy organization for individuals with rare diseases and the organizations that serve them.

      In-Depth Information

      • Medscape Reference provides information on this topic. You may need to register to view the medical textbook, but registration is free.


        1. Schmidt B, Haberlik A, Uray E, Ratschek M, Lackner H, Höllwarth ME. Sacrococcygeal teratoma: clinical course and prognosis with a special view to long-term functional results. Pediatric Surgery International. 1999; 15:573-576. https://www.ncbi.nlm.nih.gov/pubmed?term=10631738.
        2. Tailor J, Roy PG, Hitchcock R, Grant H, Johnson P, Joseph VT, Lakhoo K. Long-term functional outcome of sacrococcygeal teratoma in a UK regional center (1993 to 2006). Journal of Pediatric Hematology/oncology. 2009; 31:183-186. https://www.ncbi.nlm.nih.gov/pubmed?term=19262244. Accessed 7/12/2011.
        3. About Sacrococcygeal Teratoma (SCT). The Children's Hospital of Philadelphia. https://www.chop.edu/conditions-diseases/sacrococcygeal-teratoma-sct/about#.VsTF7_krJhE. Accessed 1/22/2016.

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