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June 17, 2026CureusOpen Access

Appendiceal Neuroendocrine Tumor Presenting as Acute Appendicitis: A Case Report

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Authors

EGEdgar A Flores GarcíaHVHector A Lopez VillicañaALAzael Lopez Lopez

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Overview

Case report highlights appendiceal neoplasms in patients presenting with acute appendicitis, suggesting surgical intervention as critical.

Key Points

  • To discuss the presentation and management of appendiceal neuroendocrine tumors occurring during acute appendicitis in a patient.
  • Emergency exploratory laparotomy was performed due to suspected complicated appendicitis.
  • An intraoperative mass was discovered and surgically resected with protective ileostomy.
  • Histopathological analysis confirmed the diagnosis of a well-differentiated appendiceal neuroendocrine tumor.
  • A firm mass of approximately 6 cm was identified involving the appendix and surrounding structures.
  • Histopathological evaluation revealed negative surgical margins and no lymph node involvement or metastases clinically post-surgery.
  • The patient had an uneventful recovery and was referred for further oncologic management.

Cite This Study

García et al. (2026) studied this question.

synapsesocial.com/papers/6a323e06d50b63ecad2075dchttps://doi.org/10.7759/cureus.110881
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Neuroendocrine Tumor of Appendix-A Case Report2024
  2. 2Incidental Diagnosis of a Well-Differentiated Appendiceal Neuroendocrine Tumor Following Appendectomy for Complicated Acute Appendicitis: A Case Report2026
  3. 3Appendiceal Neuroendocrine Tumor: A Case Report2026
  4. 4Neuroendocrine tumor of the appendix masquerading as acute appendicitis with a mucocele on CT scan: a rare finding2024 · 2 citations
  5. 5Clinical Approach to Incidentally Identified Appendiceal Neuroendocrine Neoplasms After Appendicectomy in Children2025