Neuroendocrine Tumors of the Pancreas - TNM Calc
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Primary Tumor (T)
Regional Lymph Nodes (N)
Distant Metastasis (M)
R e s u l t s
Stage
 
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Neuroendocrine Tumors of the Pancreas - TNM Calc

This view displays the TNM formula. Please select appropriate value from the list for T/N/M variables. The result will be displayed, based on your selection of variables.

Assignment of AJCC TNM

AJCC data elements required for staging are identified with an asterisk (*).

*Stage classification based on time frame and criteria(see Rules for Classification)

The same classification should be used throughout the assignment of TNM and stage group.

T CategoryT Criteria
TXTumor cannot be assessed
T1Tumor limited to the pancreas‡, 2 cm in greatest dimension
T2Tumor limited to the pancreas‡, 2 cm but 4 cm in greatest dimension
T3Tumor limited to the pancreas‡, 4 cm in greatest dimension; or tumor invading the duodenum, ampulla of Vater, or common bile duct
T4Tumor invading adjacent organs (stomach, spleen, colon, adrenal gland) or the wall of large vessels (celiac axis, superior mesenteric artery/vein, splenic artery/vein, gastroduodenal artery/vein, portal vein)

‡Limited to the pancreas means there is no invasion of adjacent organs (stomach, spleen, colon, adrenal gland) or the wall of large vessels (celiac axis or the superior mesenteric artery). Extension of tumor into peripancreatic adipose tissue is NOT a basis for staging.

Note: Multiple tumors should be designated as such (the largest tumor should be used to assign T category):

Primary Tumor Suffix

(m) Multiple synchronous primary tumors

N CategoryN Criteria
NXRegional lymph nodes cannot be assessed
N0No tumor involvement of regional lymph node(s)
N1Tumor involvement of regional lymph node(s)

Regional Lymph Nodes Suffix

(f) FNA or core needle biopsy

M CategoryM Criteria
cM0No distant metastasis
cM1Distant metastasis
cM1aMetastasis confined to liver
cM1bMetastases in at least one extrahepatic site (e.g., lung, ovary, nonregional lymph node, peritoneum, bone)
cM1cBoth hepatic and extrahepatic metastases
pM1Microscopic confirmation of distant metastasis
pM1aMicroscopic confirmation of metastasis confined to liver
pM1bMicroscopic confirmation of metastases in at least one extrahepatic site (e.g., lung, ovary, nonregional lymph node, peritoneum, bone)
pM1cMicroscopic confirmation of both hepatic and extrahepatic metastases