Do consensus indications for resection in branch duct intraductal papillary mucinous neoplasm predict malignancy?
A study of 147 patients. Pelaez-Luna M, Chari ST, Smyrk TC, Takahashi N, Clain JE, Levy MJ, et al. Am J Gastroenterol 2007; 102:1759-64. [Full text] (PMID 17686073) BACKGROUND AND AIMS: Recent consensus guidelines suggest that presence of > or =1 of the following is an indication for resection (IR) of branch duct intraductal papillary mucinous neoplasm (IPMN-Br): cyst-related symptoms, main pancreatic duct diameter > or =10 mm, cyst size > or =30 mm, intramural nodules, or cyst fluid cytology suspicious/positive for malignancy. Among a cohort of patients with IPMN-Br we determined if the consensus IR (CIR), presence of multifocal IPMN-Br, or growth of cyst size on follow-up predict malignancy. METHODS: We identified 147 patients with IPMN-Br of whom 66 underwent surgical resection at diagnosis and 81 were followed conservatively, of whom 11 were resected during follow-up. Clinical, imaging, histological, and cyst fluid characteristics from all 147 patients with IPMN-Br were obtained fr