International consensus guidelines 2012 for the management of IPMN and MCN: Brief review of indications for resection of IPMN

Abstract

International consensus guidelines 2012 for the management of IPMN and MCN was published from International Pancreatology Working Group (Chairman: Professor Masao Tanaka). This is composed of 8 chapters; Introduction, Classification, Investigation, Indications for resection, Methods of resection and other treatments, Histological aspects, Methods of follow-up and Conclusions. A brief review of Chapter 4: Indications for resection of IPMN is presented and remaining problems are discussed. Main discussions are as follows;
1. The definition of MD-IPMN and BD-IPMN was controversial and the definition of MD-IPMN, BD-IPMN and Mixed type IPMN has been newly proposed in International Consensus Guidelines 2012.
2. In algorithm of treatment for BD-IPMN, "high-risk stigmata" has been changed and "worrisome features" have been newly added. In the treatment of BD-IPMN of 2-3cm in size or of >3cm, surgical rejection is recommended or strongly recommended. This strategy may be different in Japan.