新澤 真理, 石田 秀明, 長沼 裕子, 澤邊 淳, 宇野 篤, 正宗 研

Makoto NIIZAWA, Hideaki ISHIDA, Hiroko NAGANUMA, Jun SAWABE, Atsushi UNO, Osamu MASAMUNE

秋田大学第1内科

First Department of Internal Medicine, Akita University School of Medicine

キーワード : Ultrasound, Liver, Anatomy

In this article we describe the sonographic features of accessory fissure of the left hepatic lobe, an area that is rarely reported. It is globally imaged as a wedge-shaped hyperechoic area because of invaginated peritoneal fat. The anterior side of the fissure is demonstrated as lingular, the lateral side is shown as lingular or oval, depending on the degree of fissure. This particular location strongly suggests a close relationship with the hepatogastric and hepatoduodenal ligaments. Recognition of these sonographic features can avoid misdiagnoses.