Parasitic diseases of the biliary tract

Jae Hoon Lim, Yeon Kim So, Cheol Min Park

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

OBJECTIVE. Parasites residing in the biliary tree include Clonorchis sinensis, Opisthorchis viverrini, Opisthorchis felineus, and Fasciola hepatica. They are willowy, leaf-like, flat flukes dwelling in the bile ducts and gallbladder. Human ascarides, Ascaris lumbricoides, dwelling in the small intestine, inadvertently migrate into the bile ducts and cause biliary obstruction. The purpose of this article is to illustrate typical imaging findings of liver fluke infection and biliary ascariasis. CONCLUSION. Adult flukes of Clonorchis and Opisthorchis measure 8-15 mm and adult flukes of Fasciola measure 20-40 mm in length. The presence of flukes in the bile ducts causes dilatation of the bile ducts, varying degrees of chronic inflammation followed by adenomatous hyperplasia, and bile duct wall thickening. Imaging findings of clonorchiasis and opisthorchiasis include visualization of adult flukes in the bile ducts and gallbladder, diffuse dilatation of the peripheral small intrahepatic bile ducts with no or minimal dilatation of the large bile ducts, and thickening of the bile duct wall. In biliary fascioliasis and ascariasis, adult worms are visualized in the dilated bile ducts and gallbladder.

Original languageEnglish
Pages (from-to)1596-1603
Number of pages8
JournalAmerican Journal of Roentgenology
Volume188
Issue number6
DOIs
Publication statusPublished - 2007 Jun 1

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Parasitic Diseases
Biliary Tract
Bile Ducts
Trematoda
Opisthorchis
Gallbladder
Ascariasis
Dilatation
Fasciola hepatica
Clonorchiasis
Clonorchis sinensis
Opisthorchiasis
Fasciola
Fascioliasis
Ascaris lumbricoides
Intrahepatic Bile Ducts
Small Intestine
Hyperplasia
Parasites
Inflammation

Keywords

  • Biliary system
  • CT
  • Infectious diseases
  • MRI
  • Sonography

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

Parasitic diseases of the biliary tract. / Lim, Jae Hoon; So, Yeon Kim; Park, Cheol Min.

In: American Journal of Roentgenology, Vol. 188, No. 6, 01.06.2007, p. 1596-1603.

Research output: Contribution to journalArticle

Lim, Jae Hoon ; So, Yeon Kim ; Park, Cheol Min. / Parasitic diseases of the biliary tract. In: American Journal of Roentgenology. 2007 ; Vol. 188, No. 6. pp. 1596-1603.
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