From: Pancreatic Cancer Treatment (PDQ®)
PDQ Cancer Information Summaries [Internet].
Bethesda (MD): National Cancer Institute (US); 2002-.
NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.
Table 4. Definitions for Exocrine Pancreas TNM Stage IIIa
| Stage | TNM | Description | Illustration |
|---|---|---|---|
| III | T1, N2, M0 | T1 = Tumor ≤2 cm in greatest dimension. |
 |
| –T1a = Tumor ≤0.5 cm in greatest dimension. | |||
| –T1b = Tumor >0.5 cm and <1 cm in greatest dimension. | |||
| –T1c = Tumor 1–2 cm in greatest dimension. | |||
| N2 = Metastasis in four or more regional lymph nodes. | |||
| M0 = No distant metastasis. | |||
| T2, N2, M0 | T2 = Tumor >2 cm and ≤4 cm in greatest dimension. | ||
| N2 = Metastasis in four or more regional lymph nodes. | |||
| M0 = No distant metastasis. | |||
| T3, N2, M0 | T3 = Tumor >4 cm in greatest dimension. | ||
| N2 = Metastasis in four or more regional lymph nodes. | |||
| M0 = No distant metastasis. | |||
| T4, Any N, M0 | T4 = Tumor involves celiac axis, superior mesenteric artery, and/or common hepatic artery, regardless of size. | ||
| NX = Regional lymph nodes cannot be assessed. | |||
| N0 = No regional lymph node metastases. | |||
| N1 = Metastasis in one to three regional lymph nodes. | |||
| N2 = Metastasis in four or more regional lymph nodes. | |||
| M0 = No distant metastasis. |
T = primary tumor; N = regional lymph node; M = distant metastasis.
aReprinted with permission from AJCC: Exocrine Pancreas. In: Amin MB, Edge SB, Greene FL, et al., eds.: AJCC Cancer Staging Manual. 8th ed. New York, NY: Springer, 2017, pp. 337–47.