1. Ohashi K, Murakami Y, Maruayama M, et al. Four cased of “mucin-producing” cancer of the pancreas on specific findings of the papilla of Vater. Prog Dis Endosc. 1982; 20:348–351.

2. Yoon WJ, Yoon YB, Lee KH, et al. The cystic neoplasms of the pancreas in Korea. Korean J Med. 2006; 70:261–267.

3. Sarr MG, Murr M, Smyrk TC, et al. Primary cystic neoplasms of the pancreas. neoplastic disorders of emerging importance-current state-of-the-art and unanswered questions. J Gastrointest Surg. 2003; 7:417–428.

4. Suzuki Y, Atomi Y, Sugiyama M, et al. Cystic neoplasm of the pancreas: a Japanese multiinstitutional study of intraductal papillary mucinous tumor and mucinous cystic tumor. Pancreas. 2004; 28:241–246.

5. Salvia R, Fernandez-del Castillo C, Bassi C, et al. Main-duct intraductal papillary mucinous neoplasms of the pancreas: clinical predictors of malignancy and longterm survival following resection. Ann Surg. 2004; 239:678–685.

6. Sugiyama M, Atomi Y. Extrapancreatic neoplasms occur with unusual frequency in patients with intraductal papillary mucinous tumors of the pancreas. Am J Gastroenterol. 1999; 94:470–473.

7. Yamaguchi K, Ohuchida J, Ohtsuka T, Nakano K, Tanaka M. Intraductal papillary-mucinous tumor of the pancreas concomitant with ductal carcinoma of the pancreas. Pancreatology. 2002; 2:484–490.

8. Kamisawa T, Tu Y, Egawa N, Nakajima H, Tsuruta K, Okamoto A. Malignancies associated with intraductal papillary mucinous neoplasm of the pancreas. World J Gastroenterol. 2005; 11:5688–5690.

9. Eguchi H, Ishikawa O, Ohigashi H, et al. Patients with pancreatic intraductal papillary mucinous neoplasms are at high risk of colorectal cancer development. Surgery. 2006; 139:749–754.

10. Choi MG, Kim SW, Han SS, Jang JY, Park YH. High incidence of extrapancreatic neoplasms in patients with intraductal papillary mucinous neoplasms. Arch Surg. 2006; 141:51–56.

11. Yoon WJ, Ryu JK, Lee JK, et al. Extrapancreatic malignancies in patients with intraductal papillary mucinous neoplasm of the pancreas: Prevalence, associated factors, and comparison with patients with other pancreatic cystic neoplasms. Ann Surg Oncol. 2008; 15:3193–3198.

12. Oh SJ, Lee SJ, Lee HY, et al. Extrapancreatic tumors in intraductal papillary mucinous neoplasm of the pancreas. Korean J Gastroenterol. 2009; 54:162–166.

13. Baumgaertner I, Corcos O, Couvelard A, et al. Prevalence of extrapancreatic cancers in patients with histologically proven intraductal papillary mucinous neoplasms of the pancreas: a case-control study. Am J Gastroenterol. 2008; 103:2878–2882.

14. Ishida M, Egawa S, Kawaguchi K, et al. Synchronous and metachronous extrapancreatic malignant neoplasms in patients with intraductal papillary-mucinous neoplasm of the pancreas. Pancreatology. 2008; 8:577–582.

15. Riall TS, Stager VM, Nealon WH, et al. Incidence of additional primary cancers in patients with invasive intraductal papillary mucinous neoplasms and sporadic pancreatic adenocarcinomas. J Am Coll Surg. 2007; 204:803–813.