Treatment of Colorectal Neuroendocrine Tumor (NET) Under 10 mm, Confined to T1/SM, With No Depressed Surface or Ulceration

This protocol addresses the management of colon polyps identified as colorectal neuroendocrine tumors (NETs) that are smaller than 10 mm, limited to T1 (submucosal) invasion, and show no depressed surface morphology or ulceration on the tumor surface.

Clinical Scenario

Colorectal neuroendocrine tumor (NET), size <10 mm, confined to T1 (SM), with no depressed surface or ulcer observed on the tumor surface. In this presentation, endoscopic resection is the recommended approach.

Treatment Approach

Management involves endoscopic resection; several specific endoscopic techniques may be employed depending on the clinical context.

The full structured regimen — including which method is preferred and under what conditions — is available in the complete protocol.

Instant Access to Structured Evidence-Based Regimens

References

Endoscopic resection is recommended when no depressed surface or ulcer is observed on the tumor surface and the tumor confined to T1 (SM).

The preferred resection methods are EMR, EMR-L method (EMR using a ligation device) [99, 100], EMR by the cap method [101] or ESD [102].

DOI: 10.1007/s00535-021-01776-1

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