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Stomach NET
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Stomach NET
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- For resection specimens with well-differentiated neuroendocrine tumors of low or intermediate grade of the stomach. Carcinomas with mixed endocrine/glandular differentiation, poorly differentiated carcinomas with neuroendocrine features, and small cell carcinomas are not included.
Specimen and Surgical Procedure
Specimen, procedure....................................................................
Tumor
Tumor site (gastric cardia, fundus, body antrum)..............................
Tumor size...................................................................................
Tumor focality......................................... unifocal/multifocal (specify # of tumors)
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.........................................
Proximal margin....................................................................... positive/negative
Distal margin........................................................................... positive/negative
Lesser omental (aka hepatogastric ligament) margin..................... positive/negative
Greater omental margin............................................................ positive/negative
Deep margin (endoscopic resection)........................................... positive/negative
Mucosal margins (endoscopic resection)..................................... positive/negative
Other margin(s) (if applicable; please specify).............................. positive/negative
Lymph Nodes
Regional lymph nodes (involved/examined)....................................... __/__
Pathologic stage........................................................................ pT__N__M__