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Appendix NET
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Appendix NET
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- For resection specimens with well-differentiated neuroendocrine tumors (NET) of low or intermediate grade. Goblet cell carcinoids, poorly differentiated carcinomas with neuroendocrine features, and small cell carcinomas are not included.
Specimen and Surgical Procedure
Specimen, procedure....................................................................
Specimen integrity.................................................................. intact/fragmented
Tumor
Tumor site...................................................................................
Classify as
- proximal half of appendix
- distal half of appendix
- diffusely involving appendix
- indeterminate
Tumor size...................................................................................
Histologic type................................................................. well-differentiated NET
Histologic grade............................................................................
Mitotic rate................................................................................... __/10 hpf
Ki-67 labeling index....................................................................... __%
Microscopic tumor extension...........................................................
Lymph-vascular invasion.............................................................. present/absent
Final margins
Nearest margin............................................................................
Distance from specified margin to tumor.........................................
Distance from mesenteric (mesoappendiceal) margin*......................
*if not already listed as the "Nearest margin" above
Proximal resection margin............................................... positive/negative
Other margin(s) (if applicable; please specify).................... positive/negative
Lymph Nodes
Regional lymph nodes (involved/examined)....................................... __/__
Pathologic stage........................................................................ pT__N__M__