Rectal Neuroendocrine Tumor: Clinical Case Report

Authors: Thomaz FM , Lobo JR , Gomes AOF , Lobato DSS , Peçanha MAP and Buexm LA

DOI: 10.23880/oajco-16000173

Volume 5, Issue 1

Abstract

The rectal neuroendocrine tumor (RNT) is a rare neoplasm that initiates in the neuroendocrine cells of the digestive tract called Kulchitsky cells, which originate from Lieberkün crypts. About 50% of patients are asymptomatic and their diagnosis is made incidentally by routine colonoscopies. This clinical report presents a neoplasm considered rare in a young patient and emphasizes the importance of its early diagnosis. A 23-year-old man, without comorbidities, was referred to the referral service to investigation a single occurrence of postprandial abdominal pain in the left flank. Polypoid fragment of the rectal mucosa was extracted during a colonoscopy, making it possible to perform a complete removal with free margins of the rectal NET. After histopathological and immunohistochemical evaluation, the diagnosis of RNT grade 1 was made. Although RNT is rare and asymptomatic, early screening is necessary to facilitate diagnosis in the early stage of the disease, leading to a greater possibility of treatment and a better prognosis of the disease.

Keywords: Neuroendocrine Tumors; Rectal Neoplasms; Intestinal Neoplasms

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