Semin Liver Dis 2004; 24(1): 43-48
DOI: 10.1055/s-2004-823100
Copyright © 2004 by Thieme Medical Publishers, Inc., 333 Seventh Avenue, New York, NY 10001, USA.

Canals of Hering: Recent Insights and Current Knowledge

Romil Saxena1 , Neil Theise2
  • 1Assistant Professor, Department of Pathology, Indiana University School of Medicine, Indianapolis, Indiana
  • 2Division of Digestive Diseases, Beth Israel Medical Center, New York, New York
Further Information

Publication History

Publication Date:
13 April 2004 (online)

The canals of Hering (CoH) begin in the lobules, are lined partially by cholangiocytes and partly by hepatocytes, and conduct bile from bile canaliculi to terminal bile ducts in portal tracts. They are not readily apparent on routine histological staining but are highlighted by the biliary cytokeratins CK19 and CK7. There is on average 1 CoH per 10 μm of bile duct length. The canals represent the true hepatocytic-biliary interface that thus lies within the lobule and not at the limiting plate. The CoH are destroyed early in primary biliary cirrhosis, perhaps explaining lobular “hepatitis” in this disease. They may also be the primary sites of scarring in methotrexate toxicity. Most intriguingly, the CoH have been speculated to harbor intraorgan stem cells of the liver, perhaps forming the hepatic stem cell “niche” and have been demonstrated to proliferate in disease states.

REFERENCES

Romil Saxena, M.D. , F.R.C.Path 

Department of Pathology, University Hospital UH 3465

550 North University Boulevard, Indianapolis, IN 46202

Email: [email protected]