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Changes in Three-Dimensional Intrahepatic Biliary Structures in Patients With Hepatobiliary Diseases Visualized Using
Motoko Sasaki1, Yasunori Sato1, Yasuni Nakanuma2
1Department of Human Pathology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan.
Summary
Three-dimensional (3D) imaging reveals significant changes in biliary structures in cirrhosis, offering new insights into hepatobiliary diseases. This advanced technique visualizes pathological alterations in human liver tissues, aiding disease understanding.
Area of Science:
- Hepatobiliary pathology
- Medical imaging
- Three-dimensional reconstruction
Background:
- Biliary lesions are key in hepatobiliary diseases, but their 3D structures remain poorly understood.
- Pathological changes in 3D biliary structures are crucial for understanding disease progression.
Purpose of the Study:
- To investigate pathological changes in 3D biliary structures in human chronic liver diseases.
- To utilize tissue-clearing methods for examining intrahepatic biliary alterations.
Main Methods:
- Examined 30 autopsied liver tissues from patients with cirrhosis, mild fibrosis, primary biliary cholangitis (PBC), and non-specific reactive changes (NSR).
- Employed tissue-clearing techniques and light sheet fluorescence microscopy (LSFM) for 3D visualization.
- Quantified biliary components and network characteristics using cytokeratin 19 (CK19) immunostaining.
Main Results:
- 3D biliary structures were successfully visualized using tissue-clearing and LSFM.
- Cirrhosis showed significantly increased biliary components, anastomoses, bridging, and network complexity compared to NSR and mild fibrosis.
- Advanced PBC cases did not show elevated biliary components; 3D features correlated with liver function tests.
Conclusions:
- Tissue-clearing 3D-imaging is a promising method for studying pathological changes in human intrahepatic biliary structures.
- This technique offers novel insights into the 3D architecture of biliary diseases.
- Further research can leverage 3D imaging for improved diagnosis and understanding of hepatobiliary conditions.
