[A Case of Pancreaticoduodenectomy for a Patient with Ampullary Cancer Combined with Intracystic Papillary Neoplasm].

Intracystic papillary neoplasms(ICPN)are very rare. Pancreaticoduodenectomy was performed in patients with a history of cholecystectomy for ICPN. A 76-year-old woman with no complaints was referred to our hospital and was diagnosed with adenomyomatosis preoperatively. Laparoscopic cholecystectomy was performed, and the patient was diagnosed with ICPN based on pathological findings. A follow-up CT performed 6 months after the surgery showed dilated CBD and MPD. Cholangiography revealed a filling defect in the distal bile duct, with a positive cytology test. A pancreaticoduodenectomy was performed, and the patient was discharged on postoperative day 28. The pathological findings revealed the presence of ampullary cancer. Patients with ICPN may require sufficient follow-up and further detailed examinations, if necessary.