The extent of distal intramural spread of colorectal cancer cell study of it's relationship with histological grading, stage of disease and CEA level.

Background: The free margin of distal resection is an attempt to prevent local recurrence of the tumor and prolong survival. The recommended length of distal resection margin are varied among the researchers. This study was done to know the correlation between extents of distal intramural spread (DIS) and histology grading, stage and CEA levels of colorectal cancer.