From: Gallbladder 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 3. Definitions of TNM Stage IIAa
| Stage | TNM | Description |
|---|---|---|
| IIA | T2a, N0, M0 | T2a = Tumor invades the perimuscular connective tissue on the peritoneal side, without involvement of the serosa (visceral peritoneum). |
| N0 = No regional lymph node metastasis. | ||
| M0 = No distant metastasis. |
T = primary tumor; N = regional lymph node; M = distant metastasis.
aReprinted with permission from AJCC: Gallbladder. In: Amin MB, Edge SB, Greene FL, et al., eds.: AJCC Cancer Staging Manual. 8th ed. New York, NY: Springer, 2017, pp 303–9.