Most common extra-intestinal malignancy in HNPCC:: (A) Pancreatic carcinoma, (B) Ca stomach, (C) Small bowel carcinoma, (D) Transitional cell carcinoma
Answer is B. EXTRA - INTESTINAL MALIGNANCIES IN HNPCC Endometrial (39-60%)>gastric (13-19)>ovarian (6-12%) Rare Malignancies: Small intestine, pancreatic, thyroid, transitional cell epithelium in the urinary tract (renal pelvic, ureter, bladder); brain cancers.