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Megamitochondria formation in hepatocytes of patient with chronic hepatitis C - a case report

Anna Wieczorek1, Piotr M Stępień2, Dorota Zarębska-Michaluk2

  • 1Department of Cell Biology and Electron Microscopy, Institute of Biology, Jan Kochanowski University, Kielce, Poland.

Clinical and Experimental Hepatology
|October 25, 2017
PubMed

Insights

Chronic hepatitis C virus (HCV) infection causes liver damage through unclear mechanisms. Transmission electron microscopy reveals early cellular changes, including ring-shaped nuclei and megamitochondria, aiding understanding of HCV pathogenesis.

Area of Science:

  • Hepatology
  • Virology
  • Cellular Biology

Background:

  • Chronic hepatitis C virus (HCV) infection impacts 185 million globally.
  • The precise mechanisms of liver damage in HCV remain incompletely understood.
  • Early detection of liver injury is crucial for understanding HCV pathogenesis.

Observation:

  • Light and transmission electron microscopy (TEM) were used to examine liver tissue.
  • A 24-year-old female patient with HCV infection was studied.
  • Specific subcellular abnormalities were identified in hepatocytes.

Findings:

  • TEM revealed diverse hepatocellular ultrastructural changes.
  • Common findings included ring-shaped nuclei with intranuclear inclusions.
  • Megamitochondria and "membranous web" structures, characteristic of RNA virus infection, were observed.

Implications:

  • These ultrastructural findings provide insights into early liver injury in HCV.
  • Understanding these early changes is vital for elucidating HCV pathogenesis.
  • Electron microscopy is a valuable tool for diagnosing and studying viral hepatitis.
Keywords:
HCV infectionacidophilic degenerationhydropic degenerationmegamitochondriamembranous web

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