This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Rectum, Subject name: Surgery
All are true about rectal cancer except: 
Select and explain. 
A. Most common symptom is hematochezia, B. Precise location of tumor is done with rigid proctosigmoidoscopy, C. Dissection lateral to endopelvic fascia investing the mesorectum causes local recurrence, D. Radiation dose is 60 Gray
C: Dissection lateral to endopelvic fascia investing the mesorectum causes local recurrence
Answer: C: Dissection lateral to endopelvic fascia investing the mesorectum causes local recurrence 
Explanation: Ans. (c) Dissection lateral to endopelvic fascia investing the mesorectum causes local recurrence* Total mesorectal Excision (TME) provides least recurrence* Most common symptom is bleeding PR* Sigmoidoscopy is used to localize the tumor* RT given for ca rectum is 60 Gy.