Multistep Progression of Neoplasia Carcinoma-in-situ vs. Invasive carcinoma
Normal colorectal mucosa Low-grade dysplasia
High-grade dysplasia
N1 = 1-3 nodes involvedN2 = more than 3 nodes involved
M
TNM SYSTEM
a = involvement of other organb = peritoneal involvement
DUKES STAGING OF COLORECTAL CANCER
Kikuchi Staging (sessile polyp)
Haggitt Staging (peduculated polyp)
Carcinoma Arising in Colorectal Polyp
MESORECTAL EXCISION
Top Related