Singh Heena, Singh Raghvendra, Singh Rohit K, Sehgal Garima, Dewan Rakesh K
Anatomy, King George's Medical University, Lucknow, IND.
Forensic Medicine & Toxicology, Era's Lucknow Medical College and Hospital, Lucknow, IND.
Cureus. 2024 Apr 25;16(4):e58984. doi: 10.7759/cureus.58984. eCollection 2024 Apr.
Background The liver, being the largest internal organ of the body shows a variety of gross morphological variations about lobes, fissures and processes which may be clinically significant. Among various anatomical variations, the most found is the variant fissure for ligamentum teres hepatis. The present study was done to classify, review, compare and discuss the literature for anomalies in fissures for ligamentum teres hepatis. Methods A total of 100 formalin-preserved human livers were obtained from the Department of Anatomy of King George's Medical University, Lucknow, and studied for one year. Result In our study, 15% of the liver showed morphological variations in fissures for ligamentum teres hepatis. These were classified into four types. In type I (2%), the fissure was converted into a tunnel by pons hepatis. In type II (3%), there was an incomplete fissure for ligamentum teres hepatis extending into the diaphragmatic surface. In type III (4%), there was an incomplete fissure for ligamentum teres hepatis present only on the visceral surface. In type IV (6%), the fissure was covered by a thin membrane. Conclusion In this study of the North Indian population, 15% of liver have gross morphological variations. So thorough anatomical knowledge of the existence of variant or abnormal surface features on the liver is imperative to understanding the underlying pathology for radiologists and surgeons so that a favorable outcome can be achieved.
背景 肝脏作为人体最大的内部器官，在叶、裂和突方面呈现出多种大体形态变异，这些变异可能具有临床意义。在各种解剖变异中，最常见的是肝圆韧带裂的变异。本研究旨在对肝圆韧带裂异常的文献进行分类、综述、比较和讨论。方法 从勒克瑙乔治国王医科大学解剖学系获得100个用福尔马林保存的人体肝脏，并进行了为期一年的研究。结果 在我们的研究中，15%的肝脏在肝圆韧带裂处显示出形态变异。这些变异被分为四种类型。I型（2%）中，裂被肝桥转化为隧道。II型（3%）中，肝圆韧带裂不完全，延伸至膈面。III型（4%）中，肝圆韧带裂不完全，仅存在于脏面。IV型（6%）中，裂被一层薄膜覆盖。结论 在对北印度人群的这项研究中，15%的肝脏存在大体形态变异。因此，对于放射科医生和外科医生来说，全面了解肝脏上变异或异常表面特征的存在对于理解潜在病理情况至关重要，以便能够取得良好的治疗效果。
