. The highest malignant potential is seen in -: (A) Crohn's disease, (B) Ulcerative colitis, (C) Familial polyposis, (D) Infantile polyp
Answer is C. The malignant potential of familial polyposis coli is very high. Colorectal cancer develops viually in 100% of cases by age of 50 years if not treated with colectomy. TEXTBOOK OF PATHOLOGY 6TH EDITION HARSH MOHAN PAGE NO:585