With the widespread use of advanced imaging equipment, an increasing number of pancreatic cystic lesions (PCLs), especially subcentimeter PCLs, are incidentally detected[1]. The reported prevalence of incidental PCLs on contrast-enhanced CT ranges from 2.1 % to 5.4 %[2–5]. Study has revealed that among patients with PCLs, over half presented with a cyst no larger than 3 cm[6]. A systematic review has found that 60 % of incidental PCLs with sufficient data to define the biological nature were muc…