Gastrointestinal stromal tumor of the vermiform appendix mimicking Meckel's diverticulum: Case report with literature review

Jae Min Chun, Kyoung Hoon Lim

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4 Scopus citations

Abstract

Introduction Gastrointestinal stromal tumors (GISTs) of the appendix are extremely rare. To date, only 15 cases have been reported in the English literature. Here, we present a new case of an appendiceal GIST with appendicitis. Presentation of case A 68-year-old man who complained of right lower abdominal tenderness underwent surgery for a cystic mass mimicking Meckel's diverticulum. Laparoscopy revealed a mass protruding from the proximal appendix with distal appendicitis. Complete resection with adequate margins was performed. Histology showed a spindle cell GIST without mitotic activity as well as a strong expression of CD117 and CD34. Conclusion Primary appendiceal GIST occur at a very low rate and their symptoms are nonspecific. Accordingly, rare tumors of appendix including GISTs should be considered in the differential diagnosis of atypical symptoms or image findings.

Original languageEnglish
Pages (from-to)20-22
Number of pages3
JournalInternational Journal of Surgery Case Reports
Volume21
DOIs
StatePublished - 2016

Keywords

  • Appendix
  • CD117
  • CD34
  • Gastrointestinal stromal tumor
  • Low risk

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