Advance Research, Early Detection and Treatment for Rare Tumors

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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.

Thank you to all of our OTST patients and families for making the 2015 Family meeting so memorable. For those patients who were unable to attend we recorded the presentations and will email a link to the video website when available. Please routinely check the OTST blog for updates.

October 2015

Breaking News!
 All of the 2015 OTST & PPB Family Meeting talks and the photo tribute have been edited and are now uploaded to a secure page on the Vimeo video hosting web site.
 If the Registry has your email, earlier today you should have received an email from Vimeo with a link to the site. The videos and tribute are here as a resource for families affected by ovarian stromal tumors and other DICER1-related illnesses.
 If you do not receive an email today, check first to make certain your email account is not blocking email from the Vimeo site. If after checking you still don't see that you received the link, email the Registry at This e-mail address is being protected from spambots. You need JavaScript enabled to view it. and we will send an email to you via the Vimeo site.

To support the International Ovarian and Testicular Stromal Tumor Registery, please use the DONATE NOW button.