TNM 7 classification
TNM 6 classification
1. Rules for ClassificationThe classification applies only to carcinomas of the exocrine pancreas. There should be histological or cytological confirmation of the disease.
The following are the procedures for assessing T, N, and M categories.
T categories. Physical examination, imaging, and/or surgical exploration
N categories. Physical examination, imaging, and/or surgical exploration
M categories. Physical examination, imaging, and/or surgical exploration
2. Anatomical Subsites1. Head of pancreas (C25.0)
2. Body of pancreas (C25.1)
3. Tail of pancreas (C25.2)
3. Regional Lymph NodesThe regional lymph nodes are the peripancreatic nodes, which may be subdivided as follows:
4. TNM Clinical Classification4.1. T - Primary Tumour
TX. Primary tumour cannot be assessed
T0. No evidence of primary tumour
Tis. Carcinoma in situ
T1. Tumour limited to pancreas, 2 cm or less in greatest dimension
T2. Tumour limited to pancreas, more than 2 cm in greatest dimension
T3. Tumour extends beyond pancreas, but without involvement of coeliac axis or superior mesenteric artery
T4. Tumour involves coeliac axis or superior mesenteric artery
4.2. N - Regional Lymph Nodes
NX. Regional lymph nodes cannot be assessed
N0. No regional lymph node metastasis
N1. Regional lymph node metastasis
4.3. M - Distant Metastasis
MX. Distant metastasis cannot be assessed
M0. No distant metastasis
M1. Distant metastasis
5. pTNM Pathological ClassificationThe pT, pN, and pM categories correspond to the T, N, and M categories.
pN0. Histological examination of a regional lymphadenectomy specimen will ordinarily include 10 or more lymph nodes. If the lymph nodes are negative, but the number ordinarily examined is not met, classify as pN0.
6. G Histopathological GradingSee definitions on Digestive System.
7. Stage Grouping