Pathologic Staging (pTNM)

CAP Approved Endocrine • Neuroendocrine Tumors of the Small Intestine and Ampulla 3.3.0.0

TNM Descriptors (required only if applicable) (select all that apply)

___ m (multiple primary tumors)

___ r (recurrent)

___ y (posttreatment)

Primary Tumor (pT)

___ pTX:        Primary tumor cannot be assessed

___ pT0:         No evidence of primary tumor

___ pT1:         Tumor invades lamina propria or submucosa and size 1 cm or less

(small intestinal tumors); tumor 1 cm or less (ampullary tumors)

___ pT2:         Tumor invades muscularis propria or tumor size >1 cm (small

intestinal tumors); tumor size >1 cm (ampullary tumors)

___ pT3:        Tumor invades through the muscularis propria into subserosal tissue

without penetration of overlying serosa (jejunal or ileal tumors) or

invades pancreas or retroperitoneum (ampullary or duodenal tumors)

or into nonperitonealized tissues

___ pT4:        Tumor penetrates visceral peritoneum (serosa) or invades other

organs

Regional Lymph Nodes (pN)

___ pNX:        Cannot be assessed

___ pN0:        No regional lymph node metastasis

___ pN1:         Metastasis in regional lymph nodes

Distant Metastasis (pM)

___ Not applicable

___ pM1:  Distant metastasis

Endocrine

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