# Navigating the Hump: Managing Moynihan’s Hump During a Laparoscopic Cholecystectomy

**Authors:** Allison Meihofer, Kimberly Cortez Perez, Leandro Tapia Garcia, Necial Marcelin, Mohammad Masri

PMC · DOI: 10.7759/cureus.94791 · Cureus · 2025-10-17

## TL;DR

This paper discusses a rare anatomical variation called Moynihan’s hump that can complicate laparoscopic cholecystectomy and highlights the importance of careful surgical planning.

## Contribution

The paper presents a case study emphasizing the identification and management of Moynihan’s hump during surgery to prevent complications.

## Key findings

- Moynihan’s hump can be identified during the critical view of safety assessment in cholecystectomy.
- Proper identification of anatomical structures is crucial to avoid inadvertent injury to the right hepatic artery.
- Awareness of anatomical variations is essential for safe surgical outcomes.

## Abstract

Moynihan’s hump is a rare variant of the right hepatic artery (RHA) characterized by a tortuous RHA coursing near the cystic duct. This complicates cystic artery (CA) identification, increasing the chances of mistaking the RHA for it, resulting in inadvertent injury during a cholecystectomy. We present the case of a Moynihan's hump identified during the critical view of safety assessment in a cholecystectomy performed on a 47-year-old male with cholelithiasis. Our report highlights the surgical challenges, emphasizing the importance of the identification of key structures and techniques to minimize complications. Flexibility in surgical planning and awareness of anatomical variations are crucial for ensuring patient safety.

## Linked entities

- **Diseases:** cholelithiasis (MONDO:0012672)

## Full-text entities

- **Diseases:** Moynihan's Hump (MESH:D010300), cholelithiasis (MESH:D002769)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

5 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12619948/full.md

## References

8 references — full list in the complete paper: https://tomesphere.com/paper/PMC12619948/full.md

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Source: https://tomesphere.com/paper/PMC12619948