<prompt> Most common extra-intestinal malignancy in HNPCC:Pancreatic carcinomaCa stomachSmall bowel carcinomaTransitional cell carcinoma  <response>: EXTRA - INTESTINAL MALIGNANCIES IN HNPCC Endometrial 39-60gastric 13-19ovarian 6-12 Rare Malignancies: Small intestine, pancreatic, thyroid, transitional cell epithelium in the urinary tract renal pelvic, ureter, bladder; brain cancers. 