Risk of high-grade dysplasia or malignancy according to cyst size in branch duct IPMN
| Reference | Study design | Number of patients | Cyst size | Patients with either high-grade dysplasia or malignancy (%) |
| Woo et al 109 2009 | Retrospective | 190 | >30 mm | 28.5% |
| Sadakari et al 110 2010 | Retrospective | 73 | >30 mm | 3.6% 26.3% (if MPD>5 mm) |
| Ohtsuka et al 143 2012 | Retrospective | 172 | >30 mm | 29.2% |
| Hirono et al 96 2012 | Retrospective | 134 | >30 mm | 47.4% |
| Sahora et al 85 2013 | Retrospective | 240 | >30 mm | 12% |
| Masica et al, 2017 | Retrospective | 584 | >40 mm | 88% sensitivity 40% specificity |
IPMN, intraductal papillary mucinous neoplasm; MPD, main pancreatic duct.