Advance Research, Early Detection and Treatment for Rare Tumors
Welcome to the International Ovarian and Testicular Stromal Tumor Registry. The Registry collects clinical and biologic information about ovarian and testicular stromal tumors in hopes of learning more about treatment of these rare tumors.
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The Registry is trying to understand more about what causes ovarian and testicular stromal tumors and how to best treat these rare tumors. We collaborate with physicians around the world caring for children and adults with these tumors
Data and recommendations on this site are conscientiously presented but some are unpublished observations and have not undergone peer review. Consultation with the Registry is encouraged to clarify any topics. The International OTST Registry advises caution in the citation of website information.