Moynihan’s Hump: Our Eyes See What Our Mind Knows

Moynihan’s or caterpillar hump of the right hepatic artery (RHA) is a rare anomaly in which it is tortuous and comes close to the gall bladder or cystic duct, the cystic artery being short most of the times. In such cases, the RHA is mistakenly identified as the cystic artery and is prone to be ligated or injured during cholecystectomy. Here, we report a case of cholelithiasis where, during laparoscopic cholecystectomy, Moynihan’s hump was encountered and tackled successfully. We also revisit the surgical significance of this anomaly and discuss how to deal with it safely.