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Related Experiment Videos

Neoplastic lesions of the appendix

G T Deans1, R A Spence

  • 1Department of Surgery, Belfast City Hospital, UK.

The British Journal of Surgery
|March 1, 1995
PubMed
Summary

Appendiceal neoplasms are rare but require careful management. While appendicectomy suffices for many benign tumors and carcinoids, advanced or invasive cancers necessitate right hemicolectomy for better outcomes.

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Area of Science:

  • Gastroenterology
  • Surgical Oncology
  • Pathology

Background:

  • Appendiceal neoplasms are uncommon, diagnosed infrequently before surgery.
  • Current imaging modalities like ultrasonography and computed tomography have limitations in preoperative detection.

Purpose of the Study:

  • To review the diagnosis and management of appendiceal neoplasms.
  • To delineate criteria for surgical intervention, including appendicectomy versus right hemicolectomy.
  • To discuss prognostic factors and survival rates for different appendiceal tumor types.

Main Methods:

  • Review of clinical data and pathological findings for appendiceal neoplasms.
  • Analysis of treatment outcomes based on tumor characteristics and surgical procedures.
  • Evaluation of prognostic indicators and survival statistics.

Main Results:

  • Appendicectomy alone is curative for mucoceles, localized pseudomyxoma peritonei, benign tumors, and most appendiceal carcinoids.
  • Right hemicolectomy is indicated for invasive adenocarcinoma, large tumors (>2 cm), mucin production, lymphovascular invasion, or high-grade dysplasia.
  • Tumors 1-2 cm, limited adenocarcinoma, and pediatric cases may be managed with appendicectomy at surgeon's discretion.

Conclusions:

  • Management of appendiceal neoplasms varies based on tumor type, size, and invasion.
  • Prognosis for appendiceal adenocarcinoma correlates with Dukes' stage, similar to colorectal cancer.
  • Classical carcinoids have an excellent >90% 5-year survival, while mucinous carcinoids have an intermediate prognosis.

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