ArticleJournal of minimal access surgery
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.
Article in Journal of minimal access surgery. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 24 citations in OpenAlex.
- Illustrated Anatomy of a Rare Variant: Moynihan's Hump With Independent Anterior and Posterior Cystic Arteries.Cureus · 2026Article
- Anatomical Pitfall in Calot's Triangle: Safe Cholecystectomy in the Presence of Moynihan's Hump.Cureus · 2025Article
- Article
- Laparoscopic Cholecystectomy in Moynihan's Hump, Varices of Paracholedochal Plexuses With Superficial Course of Inferior Vena Cava at Calot's Triangle: Case Report.Clinical case reports · 2025Article
- Anatomical Challenges in Laparoscopic Cholecystectomy: Five Arterial Branches from a Right Hepatic Caterpillar Hump.The American journal of case reports · 2025Article
- Anatomical Schemata Revealed by the Critical View of Safety Approach: A Proposal of the Hellenic Task Force on the Typology of Safe Laparoscopic Cholecystectomy (HETALCHO).Medicina (Kaunas, Lithuania) · 2024Article
- Rare anatomical variants encountered during laparoscopic cholecystectomy in low resource conditions and the convenient concept of the safe zone of dissection: a prospective observational study at a single center.Journal of minimally invasive surgery · 2024Article
- Pre-Operative Group and Save in Elective and Emergency Laparoscopic Cholecystectomy: Necessity, Cost-Effectiveness, and Own Experience.Journal of clinical medicine · 2024Article
- Vascular injury during laparoscopic cholecystectomy: An often-overlooked complication.World journal of gastrointestinal surgery · 2023Review
- A 56-Year-Old Woman with Acute Cholecystitis and a Moynihan's Hump, or Caterpillar Configuration, of the Right Hepatic Artery Identified During Laparoscopic Cholecystectomy.The American journal of case reports · 2022Article
- Indocyanine green (ICG) fluorescent cholangiography during laparoscopic cholecystectomy using RUBINA™ technology: preliminary experience in two pediatric surgery centers.Surgical endoscopy · 2021Article
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Authors and funding
6 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundCaterpillar hump of the right hepatic artery is a rare variation increasing the risk of vascular and biliary injuries during hepatobiliary surgery. The aim of this study is to record the cases of the right hepatic artery forming caterpillar hump in a cohort of patients underwent laparoscopic cholecystectomy and to report a review of the literature systematically conducted.
methodsWe reviewed clinical and surgical video data of 230 patients with symptomatic cholelithiasis treated with laparoscopic cholecystectomy between January 2016 and August 2017. A systematic literature search in PubMed, Medline, Cochrane and Ovid databases until 30
resultsOur institutional data indicated that 1.3% of 230 patients presented caterpillar hump right hepatic artery. The systematic review included 16 studies reporting data from a total of 498 human cadavers and 579 patients submitted to cholecystectomy. The overall proportion of surgical patients with the caterpillar hump right hepatic artery was 6.9%.
conclusionsVariations of the cystic artery are not just an anatomical dissertation, assuming a very crucial role in surgical strategies to avoid uncontrolled vascular lesions. A meticulous knowledge of the hepatobiliary triangle in association with all elements of 'Culture of Safety in Cholecystectomy' is mandatory for surgeons facing more than two structures within Calot's triangle.
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