Observational Study on Endometrial Stromal Tumors

Observational, retrospective and prospective study on EST aimed to understand more about its biology, natural history and antitumor activity of different treatment options.

This study will collect data in prospective and retrospective way of patients affected by EST and treated according disease guidelines and local practices.

The study will also review the diagnosis by a central expert pathologist in order to its confirmation

• Treatment for EST (Other): Surgery and/or Chemotherapy and or/radiotherapy for EST treatment according to disease guidelines: no specific treatment is imposed by protocol (observational study)

Primary outcomes

• Disease natural history [Through survival, an average of 5 years]: Collection of data on the natural history of endometrial stromal tumors

Secondary outcomes

• Disease diagnosis and classification [At the time of diagnosis, an average of 1 month]: Highlight some main issues in pathologic diagnosis of these tumors and their classification
• Chemotherapy received treatment [Through treatment completion, an average of 24 month]: Number and type of chemotherapy agents received for EST treatment

Sex: Female, ages: 18 Years to 80 Years

Inclusion Criteria:

* patients with a diagnosis of Endometrial Stromal Tumor (EST) according to the World Health Organization (WHO) classification 2003 or 2014
* Informed consent signature

Exclusion Criteria:

* patients with different diagnosis from EST

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• Paolo G Casali, MD, Study chair, Italian Sarcoma Group