Surveillance of subcentimeter side-branch intraductal papillary mucinous neoplasms: risk of invasive disease and follow-up recommendations

Side-branch intraductal papillary mucinous neoplasms (SB-IPMNs) are increasingly recognized with the increasing use of high-fidelity cross-sectional imaging, particularly subcentimeter (<1 cm) lesions. Data regarding the risk of progression in subcentimeter cysts are absent. This study aimed to define the risk associated with subcentimeter SB-IPMNs and to propose a surveillance strategy based on this cohort.