National Center for Advancing and Translational Sciences Genetic and Rare Diseases Information Center, a program of the National Center for Advancing and Translational Sciences

Endometrial stromal sarcoma



Other Names:
ESS
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Endometrial stromal sarcoma is a rare form of cancer that occurs due to abnormal and uncontrolled cell growth in the uterus. Endometrial stromal sarcoma, specifically, develops in the supporting connective tissue (stroma) of the uterus. Signs and symptoms of the condition include abnormal uterine bleeding (i.e. bleeding that is not part of menstrual periods or bleeding after menopause); abdominal pain and/or distension; and frequent urination. The exact underlying cause of endometrial stromal sarcoma is currently unknown. Most cases occur sporadically in people with no family history of the condition. Treatment varies based on the severity of the condition but may include surgery, radiation therapy, chemotherapy, and/or hormone therapy.[1][2][3]
Last updated: 2/15/2016

Research helps us better understand diseases and can lead to advances in diagnosis and treatment. This section provides resources to help you learn about medical research and ways to get involved.

Clinical Research Resources

  • ClinicalTrials.gov lists trials that are related to Endometrial stromal sarcoma. Click on the link to go to ClinicalTrials.gov to read descriptions of these studies.

    Please note: Studies listed on the ClinicalTrials.gov website are listed for informational purposes only; being listed does not reflect an endorsement by GARD or the NIH. We strongly recommend that you talk with a trusted healthcare provider before choosing to participate in any clinical study.

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

Organizations Providing General Support


Living with a genetic or rare disease can impact the daily lives of patients and families. These resources can help families navigate various aspects of living with a rare disease.

Financial Resources


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 American Cancer Society provides information on Endometrial stromal sarcoma. Please click on the link to access this resource.
  • The National Cancer Institute provides the most current information on cancer for patients, health professionals, and the general public.

In-Depth Information

  • Medscape Reference provides information on this topic. You may need to register to view the medical textbook, but registration is free.
  • The Monarch Initiative brings together data about this condition from humans and other species to help physicians and biomedical researchers. Monarch’s tools are designed to make it easier to compare the signs and symptoms (phenotypes) of different diseases and discover common features. This initiative is a collaboration between several academic institutions across the world and is funded by the National Institutes of Health. Visit the website to explore the biology of this condition.
  • PubMed is a searchable database of medical literature and lists journal articles that discuss Endometrial stromal sarcoma. Click on the link to view a sample search on this topic.

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  1. Rauh-Hain JA, del Carmen MG. Endometrial stromal sarcoma: a systematic review. Obstet Gynecol. September 2013; 122(3):676-683.
  2. Uterine Sarcoma. American Cancer Society. February 2016; http://www.cancer.org/cancer/uterinesarcoma/index.
  3. Uterine Sarcoma Treatment (PDQ®). National Cancer Institute. July 2015; http://www.cancer.gov/types/uterine/patient/uterine-sarcoma-treatment-pdq#section/_7.