Recurrence pattern and surveillance strategy for rectal neuroendocrine tumors after endoscopic resection.

Although initial screening for detecting metastatic lesions using computed tomography is recommended, repeated imaging for detecting extracolonic recurrence was not necessary for small non-metastatic rectal NETs. However, regular endoscopic follow-up seems reasonable, especially in case of synchronous rectal NETs, for detecting metachronous rectal NETs.