Pathophysiology and diseases of the proximal pathways of the biliary system

Yukihiro Nakanishi, Romil Saxena

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Context.- Diseases of the proximal pathways of the biliary system can be divided into those that affect the interlobular bile ducts and those that affect the bile canaliculi. The former include primary biliary cirrhosis, small-duct variant of primary sclerosing cholangitis, graftversus-host disease, and drug-induced liver injury, whereas the latter include progressive familial intrahepatic cholestasis, benign recurrent intrahepatic cholestasis, intrahepatic cholestasis of pregnancy, and drug-induced liver injury. Objective.- To summarize the current state of knowledge of diseases of the proximal pathways of the biliary system, with special emphasis on clinical presentation, pathological features, and differential diagnosis. Data Sources.- Clinicopathological information was extracted from pertinent published literature. Conclusions.- Care of the patient with cholestasis hinges on identifying the etiology. Diagnostic steps in cholestatic conditions comprise a thorough patient history, abdominal imaging, distinct serological studies, and liver biopsy. Primary biliary cirrhosis is characterized by distinctive serological and histological findings. The small-duct variant of primary sclerosing cholangitis is very rare and difficult to diagnose; imaging of the bile ducts is not helpful. Graft-versus-host disease is characterized by damage and loss of intrahepatic bile ducts. Drugs can cause injury variably at the level of bile canaliculus or the interlobular bile duct. Loss of bile ducts may be seen with primary biliary cirrhosis, primary sclerosing cholangitis, graft-versus-host disease, and drug-induced liver injury. Progressive familial intrahepatic cholestasis and progressive familial intrahepatic cholestasis represent 2 extreme ends of the spectrum of abnormalities in transporters responsible for bile formation. Intrahepatic cholestasis of pregnancy has a variable incidence in different parts of the world and may be due to abnormalities in transporter molecules.

Original languageEnglish (US)
Pages (from-to)858-866
Number of pages9
JournalArchives of Pathology and Laboratory Medicine
Volume139
Issue number7
DOIs
StatePublished - Jul 1 2015

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Biliary Tract
Bile Ducts
Chemical and Drug Induced Liver Injury
Sclerosing Cholangitis
Biliary Liver Cirrhosis
Bile Canaliculi
Graft vs Host Disease
Intrahepatic Cholestasis
Intrahepatic Bile Ducts
Information Storage and Retrieval
Cholestasis
Bile
Patient Care
Differential Diagnosis
Biopsy
Liver
Incidence
Wounds and Injuries
Pharmaceutical Preparations
Intrahepatic Cholestasis of Pregnancy

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Medical Laboratory Technology
  • Medicine(all)

Cite this

Pathophysiology and diseases of the proximal pathways of the biliary system. / Nakanishi, Yukihiro; Saxena, Romil.

In: Archives of Pathology and Laboratory Medicine, Vol. 139, No. 7, 01.07.2015, p. 858-866.

Research output: Contribution to journalArticle

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