This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Chronic radiation proctitis is associated with the treatment of all malignancies, EXCEPT: 
Select and explain. 
A. Carcinoma cervix, B. Carcinoma testes, C. Carcinoma prostate, D. Carcinoma small bowel
D: Carcinoma small bowel
Answer: D: Carcinoma small bowel 
Explanation: Chronic radiation proctitis is a troublesome complication occurring in 5%-20% of patients following pelvic radiotherapy. It was done for carcinoma of the prostate, rectum, urinary bladder, cervix, uterus and testes. Carcinoma small bowel is a rare condition and it is mainly adeno carcinoma which is not treated ith radiotherapy. Ref: World J Gastroenterol 2011 November 7; 17(41): 4554-4562.