Abstract #2893

MR-guided high intensity focused ultrasound of extra-abdominal desmoid tumors: a retrospective study of 61 patients

Daniel Duex¹, Vipul Sheth¹, Ryan Brunsing¹, Kristen Ganjoo², Raffi Avedian³, Rachelle Bitton¹, and Pejman Ghanouni¹

¹Radiology, Stanford University, Stanford, CA, United States, ²Medicine - Med/Oncology, Stanford University, Stanford, CA, United States, ³Orthopaedic Surgery, Stanford University, Stanford, CA, United States

Synopsis

We reviewed MR-guided high intensity focused ultrasound treatments (MRgFUS) of extra-abdominal desmoid tumors (DTs) in our institution from 02/2013 until 12/2020. The primary endpoints for assessing efficacy are post-treatment change in tumor volume, response based on RECIST and mRECIST; secondary endpoints are change in pain and quality of life. Complications are also reported. Our study demonstrates MRgFUS is an effective treatment option for first line and salvage therapy of desmoid tumors.

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