Fig. 1
![Fig. 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs43055-021-00579-x/MediaObjects/43055_2021_579_Fig1_HTML.png)
Schematic demonstration of cystic duct confluence with extrahepatic bile duct. The craniocaudal insertion level is labeled by the letters H, M and L indicating high, mid and low insertions, respectively (a). The transverse site of insertion is labeled by the letters L, A, M and P indicating lateral, anterior, medial and posterior insertions, respectively (b)