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Related Experiment Videos

Reversible hepatitis associated with diclofenac.

G S Ouellette1, B E Slitzky, J A Gates

  • 1Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06510-8070.

Journal of Clinical Gastroenterology
|April 1, 1991
PubMed
Summary
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Diclofenac-induced hepatitis, though rare, can be severe and fatal. Prompt identification of its clinical and histological features is crucial for recognizing this potentially reversible liver injury.

Area of Science:

  • Hepatology
  • Toxicology
  • Drug-induced Liver Injury

Background:

  • Diclofenac is a commonly used nonsteroidal anti-inflammatory drug (NSAID).
  • Drug-induced liver injury (DILI) from diclofenac is a rare but potentially severe complication.
  • Understanding the clinical and pathological spectrum of diclofenac hepatitis is essential for timely diagnosis and management.

Observation:

  • Clinical presentation of DIH includes jaundice, pruritus, fever, and gastrointestinal symptoms, typically emerging weeks to months after drug initiation.
  • Laboratory findings reveal mild elevations in bilirubin and alkaline phosphatase, with often marked increases in transaminases.
  • Histological examination shows nonspecific hepatitis with portal/lobular activity and hepatocellular injury, potentially progressing to necrosis.

Findings:

Related Experiment Videos

  • The underlying mechanism of DIH appears variable, encompassing hypersensitivity reactions and toxic-metabolic effects.
  • Ultrastructural analysis in DIH cases exhibits patterns characteristic of drug or toxin-induced cellular injury.
  • Distinct ultrastructural features may aid in differentiating DIH from other forms of hepatitis.

Implications:

  • Prompt identification of DIH is critical due to its potential for severe outcomes, including fatality.
  • Understanding the variable injury patterns and ultrastructural characteristics can improve diagnostic accuracy.
  • Recognition of DIH's reversibility underscores the importance of early drug withdrawal and supportive management.