Journal of the Korean Society of Radiology (대한영상의학회지)

The Korean Society of Radiology (대한영상의학회)
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'Triangular Cord' Sign in Biliary Atresia

담도폐쇄증에서 'Triangular Cord' Sign

  • Hee Jung Lee (Department of Radiology, Keimyung University Dongsan Hospital) ;
  • Mu Sook Lee (Department of Radiology, Keimyung University Dongsan Hospital) ;
  • Jin Young Kim (Department of Radiology, Keimyung University Dongsan Hospital)
  • 이희정 (계명대학교 의과대학 동산병원 영상의학과) ;
  • 이무숙 (계명대학교 의과대학 동산병원 영상의학과) ;
  • 김진영 (계명대학교 의과대학 동산병원 영상의학과)
  • Received : 2022.06.03
  • Accepted : 2022.09.11
  • Published : 2022.09.01
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Abstract

Biliary atresia is an unknown etiology of extrahepatic bile duct obstruction with a 'fibrous ductal remnant,' which represents the obliterated ductal remnant in the porta hepatis. The sonographic 'triangular cord' (TC) sign has been reported to indicate a fibrous ductal remnant in the porta hepatis. In this review, we discuss the correlations among surgicopathological and sonographic findings of the porta hepatis and the definition, objective criteria, diagnostic accuracy, and differential diagnosis of the TC sign in biliary atresia.

담도폐쇄증은 원인은 알 수 없으나 간외 담도의 섬유화로 내강이 막히면서 간문부에 '섬유성 담도잔유물'의 형태로 남아있는 질환이다. 'Triangular cord' (이하 TC) sign은 간문부에 남아있는 섬유성 담도잔여물을 초음파 검사에서 나타내는 소견이다. 본 종설에서는 담도폐쇄증의 수술 및 초음파 소견의 비교, TC sign의 정의, 객관적인 진단기준, 진단의 정확도 및 감별진단에 대하여 기술하고자 한다.

Keywords

References

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