Features to report & grossing

Topic Completed: 1 August 2012

Minor changes: 19 November 2020

Copyright: 2003-2021,, Inc.

PubMed Search: Appendix[TI] features to report

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Features to report | Grossing
Cite this page: Mansouri J. Features to report & grossing. website. Accessed October 18th, 2021.
Features to report
  • Tumor size
  • Histologic type
  • Histologic grade
  • Depth of invasion
  • Angiolymphatic invasion
  • Perineural invasion
  • Margin involvement (surgical, radial, mesenteric)
  • Peritumoral satellite nodules (for appendiceal carcinomas)
  • Lymph node involvement (total involved, total examined)
  • Mitotic rate and Ki-67 labeling index (for appendiceal carcinoids)
  • Additional findings such as diverticula

  • As of June 2012, there are updated College of American Pathologists (CAP) protocols for both appendiceal adenocarcinomas and well-differentiated neuroendocrine tumors (NET) of the appendix: visit and search for "Cancer Protocols and Checklists"
  • Staging for NETS does not include poorly differentiated (high-grade, G3) neuroendocrine carcinomas, small cell carcinomas, and goblet cell carcinoids (use CAP protocol for appendiceal carcinomas)

  • Describe length and greatest diameter, external surface (fibrinous exudate, perforation), luminal patency, mucosa, details of any unusual lesions
  • Submit longitudinal or cross section of distal tip (common site of carcinoid tumors), cross sections from middle and margin of resection
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