This protocol addresses patients with a confirmed desmoid tumor located at the extremity, the shoulder or pelvic girdle, or the chest wall — anatomical sites that share a distinct management pathway guiding how clinicians weigh observation against intervention.
The tumor is confirmed to arise at one of three sites: the extremity (arm or leg), a girdle (shoulder or pelvic region), or the chest wall. This location is clinically relevant because it shapes the risk-benefit calculation for every subsequent management decision — from how frequently to image, to when, if ever, escalation beyond observation is warranted.
Current evidence supports beginning with a structured observational strategy — active surveillance with regular clinical assessments and imaging — before committing to any active treatment. The complete protocol specifies the surveillance schedule, the criteria used to define meaningful change, and the decision points that govern escalation. Only a portion of the approach is described here.