Duodenum and Ampulla NET

Duodenum and Ampulla neuroendocrine tumor click to access explanations in the original CAP template

Microscopic descriptions:

- Tumor histology and immunohistochemical studies:

- Histologic type and grade (WHO 5e): Using 22 mm eyepiece at x40 objective, counting 42 fields = 10 mm². Divide by 5 to get hot spot mitotic count of 2 mm²
	- Mitotic rate:
	- Ki-67 labeling index:
+ Histologic Subtypes:
- Tumor size:
- Tumor focality:
- Tumor extension (duodenum):
- Tumor extension (ampulla of Vater):
- Lymphatic and / or Vascular Invasion:
+ Perineural invasion:

For endoscopic, local resection, or ampullectomy specimens:

- Deep margin:
- Mucosal margin:
- Other margin(s) (specify: ):

For segmental resection specimens:

- Proximal margin:
- Distal margin:
- Radial or mesenteric margin:
- Other margin(s) (specify: ):

For pancreaticoduodenal resection specimens:

- Proximal margin (gastric or duodenal):
- Distal margin (distal duodenal or jejunal):
- Uncinate (retroperitoneal/superior mesenteric artery) margin:
- Bile duct margin:
- Pancreatic neck/parenchymal margin:

Regional lymph nodes:

- Number of regional lymph nodes examined:
- Number of lymph nodes involved:
+ Extranodal extension:

Distant Metastasis: Not applicable Not identified Non-regional lymph node(s) (specify): Lung (specify): Liver (specify): Bone (specify): Peritoneum (specify): Ovary (specify): Other (specify): Cannot be determined:

Pathologic Stage Classification (AJCC 9e):

- TNM Descriptors:	m (multiple primary tumors) r (recurrent) y (post treatment)
- Primary tumor (pT):
- Regional lymph nodes (pN):
- Distant metastasis (pM):

+ Additional pathologic findings:

Endocrine cell hyperplasia Tumor necrosis Psammoma bodies

- Other (specify) :

- Additional notes: