Desmoid tumor of small intestine
ICD-10 D13.3 · ICD-11 2E92.3&XH13Z3

First-Line Treatment of Desmoid Tumor of Small Intestine

Management of desmoid tumor of the small intestine is shaped by tumor location and natural history. An initial growth phase is frequently followed by stabilization — an observation that underlies current first-line recommendations for most patients.

Clinical Situation

This protocol addresses patients presenting with a desmoid tumor of the small intestine at first management. Tumor location — including critical sites such as the mesentery — influences the intensity of surveillance and overall management decisions.

Recommended Approach (Partial Overview)

Active surveillance in conjunction with pain management is now recommended for most patients as the first-line strategy. Structured follow-up with imaging is central to this approach, with surveillance intensity adjusted according to tumor location. The complete follow-up schedule, specific pain management options, and full clinical algorithm are detailed in the protocol.

Clinical Goal

Stabilization or spontaneous regression of the desmoid tumor on follow-up imaging.

Instant Access to Structured Evidence-Based Regimens

References

DOI: 10.1002/cncr.34332

Consequently, active surveillance in conjunction with pain management is now recommended for most patients.

Patients should be monitored by clinical symptoms and MRI (or CT if MRI is not possible) at 3-month to 6-month intervals for at least 2-3 years and every 6-12 months thereafter, with shorter intervals if tumors are located at critical sites such as head and neck or mesentery.

Guidelines now recommend their use for pain control only.

Frequently, an initial growth phase is followed by stabilization.

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