Which of the following is the investigation of choice for assessment of depth of penetration and perirectal nodes in rectal cancer?
Trans rectal ultrasound
CT scan
Double contrast barium enema
MRI scan
Ans. (d) MRI ScanRef: Sabiston 19th Edition, Pages 1357-1358* Endo rectal MRI is the standard investigation to do T and N staging of cancer rectum* It's also good for overall staging** Even endorectal MRI is replaced now by surface coil MRI
Rectum