Abstract
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.
References
Sangameswaran K, Rohinidevi M (2017) Surgical importance of caterpillar (Moynihan) hump of right hepatic artery. Int J Anat Res 5:3672–3675. https://doi.org/10.16965/ijar.2017.136
Dwivedi DN. Complications of biliary tract surgery. In: Chattopadhyay TK, Sahni P, Pande GK (eds). GI surgery annual 2000, Vol 7. New Delhi: Indian Association of Surgical Gastroenterology 2000; 7: 132–166
Flint ER (1923) Abnormalities of the right hepatic, cystic, and gastroduodenal arteries, and of the bile-ducts. Br J Surg 10:509–519 Available from: http://www.doi.wiley.com/10.1002/bjs. 1800104011
Nagral S (2005) Anatomy relevant to cholecystectomy. J Min Access Surg 1:53–58
Benson EA, Page RE (1976) A practical reappraisal of the anatomy of the extrahepatic bile ducts and arteries. Br J Surg 63:854
Marano L, Bartoli A, Polom K, Bellochi R, Spaziani A, Castagnoli G (2019) The unwanted third wheel in the Calot’s triangle: incidence and surgical significance of caterpillar hump of right hepatic artery with a systematic review of the literature. J Min Access Surg 15:185–191
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Raghuwanshi, D.S., Ram, M., Khan, S. et al. Moynihan’s Hump: Our Eyes See What Our Mind Knows. Indian J Surg 83, 1077–1078 (2021). https://doi.org/10.1007/s12262-020-02535-x
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DOI: https://doi.org/10.1007/s12262-020-02535-x