Neuroendocrine Tumor of the Appendix: Case Report

• DOI: https://doi.org/10.22533/at.ed.1595312530095

• Palavras-chave: Neuroendocrine tumor; Appendicular stump; Colectomy

• Keywords: Neuroendocrine tumor; Appendicular stump; Colectomy;

• Abstract:

  Neuroendocrine tumors (NETs) of the appendix are rare neoplasms, and in most cases, they are diagnosed incidentally in appendectomy specimens. The occurrence of NETs in the appendicular stump, especially after a long interval since surgery, is an exceptionally uncommon condition. In this report, we present the case of a 67-year-old patient who had undergone appendectomy at age 16 and who, during initial investigation for endometrial thickening, presented with a subepithelial lesion in the appendicular stump orifice identified by colonoscopy. Histopathological diagnosis confirmed that it was an appendicular stump NET. The patient underwent laparoscopic right colectomy, with satisfactory postoperative evolution. Clinical, diagnostic, and therapeutic aspects of the case are discussed, contextualized in light of the most recent literature.