中村 滋¹, 長尾 顕一², 尾崎 美紀¹, 岩崎 光博¹, 楠木 実千代¹, 西村 浩³, 綛野 進⁴, 森本 義彦⁴, 朝井 均⁵

Shigeru NAKAMURA¹, Kenichi NAGAO², Miki OZAKI¹, Mitsuhiro IWASAKI¹, Michiyo KUSUNOKI¹, Hiroshi NISHIMURA³, Susumu KASENO⁴, Yodhihiko MORIMOTO⁴, Hitoshi ASAI ⁵

¹(医)寺西報恩会長吉総合病院臨床検査科, ²住友生命総合健診システム新大阪検査部, ³(医)寺西報恩会長吉総合病院内科, ⁴(医)寺西報恩会長吉総合病院外科, ⁵大阪教育大学保健管理センター

¹Department of Clinical Laboratory, Nagayoshi General Hospital, ²Department of Clinical Laboratory Sumitomo Life Multiphasic Health Test System, ³Department of Internal Medicine, Nagayoshi General Hospital, ⁴Department of Surgery, Nagayoshi General Hospital, ⁵Health Administration Center, Osaka University of Education

キーワード : Accessory fissure, Anatomy, Liver, Ultrasound

We encountered 95 cases of accessory fissures of the liver (107 accessory fissures) with a detection rate of 6.43% in 1478 subjects (801 males and 677 females) in routine ultrasonograpic studies from 21 August to 20 October 1996. These fissures were classified into four types with respect to their location in the liver to evaluate their etiologic significance. All four types had a similar tendency to be detected more frequently in older subjects: The detection rate was 14.4% in subjects older than 70 years of age. Some of the differences in location of accessory fissures in the liver were were related to sex and physical consitution. These various accessory fissures of the liver can be detected with careful ultrasonographic examination.