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Procedure

Segmental resection Ileocolic resection Pancreaticoduodenectomy (Whipple) Other Not specified

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Tumor Site

Duodenum Jejunum Ileum Small intestine, not otherwise specified Other

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Tumor Size (cm)

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Macroscopic Tumor Perforation

Not identified Present Cannot be determined

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Histologic Type

Adenocarcinoma (not otherwise characterized) Mucinous adenocarcinoma (greater than 50% mucinous) Poorly cohesive cell carcinoma +/- signet-ring cells Medullary carcinoma Adenosquamous carcinoma Squamous cell carcinoma Large cell neuroendocrine carcinoma Small cell neuroendocrine carcinoma Neuroendocrine carcinoma (poorly differentiated)# Mixed adenocarcinoma-neuroendocrine carcinoma Undifferentiated carcinoma Other histologic type

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Histologic Grade

G1: Well differentiated G2: Moderately differentiated G3: Poorly differentiated G4: Undifferentiated Other GX: Cannot be assessed Not applicable

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Tumor Extension

No evidence of primary tumor High-grade dysplasia/carcinoma in situ Tumor invades the lamina propria Tumor invades the submucosa Tumor invades the muscularis propria Tumor invades through the muscularis propria into the subserosa, or extends into nonperitonealized perimuscular tissue (mesentery or retroperitoneum) without serosal penetration Tumor perforates the visceral peritoneum Tumor directly invades other organs/structures Cannot be assessed

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Margins

All margins are uninvolved by invasive carcinoma, carcinoma in situ and adenoma One or more margins involved by neoplasia

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Lymphovascular Invasion

Not identified Present Cannot be determined

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Regional Lymph Nodes

Check here if any lymph nodes submitted?

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Pathologic Staging (pTNM)

TNM Descriptors (select all that apply)

Not applicable m r y

pT

pTX: Primary tumor cannot be assessed pT0: No evidence of primary tumor pTis: High-grade dysplasia/carcinoma in situ pT1 Tumor invades the lamina propria or submucosa pT1a: Tumor invades the lamina propria pT1b: Tumor invades the submucosa pT2: Tumor invades the muscularis propria pT3: Tumor invades through the muscularis propria into the subserosa or extends into the nonperitonealized perimuscular tissue (mesentery or retroperitoneum) without serosal penetration# pT4: Tumor perforates the visceral peritoneum or directly invades other organs or structures (e.g., other loops of small intestine, mesentery of adjacent loops of bowel, and abdominal wall by way of serosa; for duodenum only, invasion of pancreas or bile duct)

pN

pNX: Regional lymph nodes cannot be assessed pN0: No regional lymph node metastasis pN1: Metastasis in one or two regional lymph nodes pN2: Metastasis in three or more regional lymph nodes

pM

pMx: Not applicable pM1: Distant metastasis

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+ Additional Pathologic Findings (select all that apply)

None identified Adenoma(s) Crohn disease Celiac disease Other polyps Other findings