Colon Cancer Stages

Friday, February 7th 2014. | Cancer

Colon Cancer Stages

Colon Cancer Stages is a malignant tumor arising from the inner wall of the large intestine. Colorectal cancer is the third leading cause of cancer in males and fourth in females in the U.S.
 
An adaptation by the Americans Astler and Coller in 1954 further divided stages B and C
 
  • Stage A: Limited to mucosa
  • Stage B1: Extending into muscularis propria but not penetrating through it; nodes not involved
  • Stage B2: Penetrating through muscularis propria; nodes not involved
  • Stage C1: Extending into muscularis propria but not penetrating through it. Nodes involved
  • Stage C2: Penetrating through muscularis propria. Nodes involved
  • Stage D: Distant metastatic spread
 
 
Tumor grade (G) : The grade of a cancer can help the doctor predict how quickly the cancer might grow.
  • GX: The tumor grade cannot be identified.
  • G1: The cells are more like normal cells (called well differentiated).
  • G2: The cells are somewhat like normal cells (called moderately differentiated).
  • G3: The cells look less like normal cells (called poorly differentiated).
  • G4: The cells barely look like normal cells (called undifferentiated).
 
 
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