Adenocarcinoma

Stenosing carcinoma

Upper margin of adenocarcinoma

Stenosing adenocarcinoma

 T - Primary tumor:

  • T x = Primary tumor can not be evaluated
  • T 0 = No indication for primary tumor
  • T is = Carcinoma in situ
  • T 1 = Tumor infiltrates lamina propria or submucosa
  • T 2 = Tumor infiltrates muscularis propria
  • T 3 = Tumor infiltrates adventitia
  • T 4 = Tumor infiltrates surrounding structures

N - Regional lymph nodes:

  • N x = Regional lymph nodes can not be evaluated
  • N 0 = No regional lymph nodes metastases
  • N 1 = regional lymph node metastases

M - Metastases:

  • M x = Can not be evaluated
  • M 0 = No metastases
  • M 1 = Metastases

Stages:

  • Stage 0: T is, N 0, M 0
  • Stage I: T 1, N 0, M 0
  • Stage IIA: T 2 or T 3, N 0, M 0
  • Stage IIB: T 1 or T 2, N 1, M 0
  • Stage III: T 3, N 1, M 0, T 4, every N, M 0
  • Stage IV: every T, every N, M 1

Chapter