The best investigation for colorectal carcinoma:: (A) Exfoliative cytology, (B) Air contrast barium enema, (C) Ultrasound, (D) Colonoscopy and biopsy
Answer is D. Ans: d (Colonoscopy and biopsy)Ref: Bailey & Love, 24,hed, p. 1179 & 23rd ed,p.1051