Duke's classification

Duke's classification

Surgical oncology A system for staging colorectal carcinoma–which has been modified with time. See TNM classification.

Duke's classification

Stage Depth of invasion 5-year survival

A  Limited to mucosa  100.0%

B1  Muscularis propria, negative nodes  66.4%

B2  Penetrates muscularis propria, negative nodes   53.9%

C1  Limited to wall, positive nodes  42.8%

C2  Through wall, positive nodes  22.4%

(D) Non-Duke's designation for distal metastases    3.0%

McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.