Retroperitoneal Sarcoma Registry: This study focuses on retroperitoneal sarcoma (RPS), a rare type of tumor located in the back of the abdomen. The only current cure is surgery. The study aims to collect data on patients undergoing surgery to learn more about the best treatments and outcomes.

Key Details:

• This study is observational and involves collecting data from patients who have had surgery for RPS.
• Participants will be monitored through regular check-ups, including scans every few months, to track their health and recovery.
• The study will include 400 patients each year, with no fixed end date.

Eligibility: To participate, patients must be over 18, have a confirmed diagnosis of RPS, and consent to the study. Those with recurrent or benign tumors, or serious psychiatric issues that prevent informed consent, are excluded.

The aim is to improve understanding of RPS and guide better treatment strategies worldwide. Each participating center will ensure patient confidentiality and manage their own data. There are no set risks mentioned for participants, but the study requires commitment to regular follow-ups.