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Propylthiouracil-induced fatal hepatic necrosis
The American Journal of Gastroenterology
|February 1, 1987
Summary
Propylthiouracil, a hyperthyroidism drug, caused fatal liver necrosis in a patient. This rare adverse effect, known as propylthiouracil-induced hepatic necrosis, is a serious concern.
Area of Science:
- Hepatology
- Endocrinology
- Toxicology
Background:
- Propylthiouracil (PTU) is a common medication for hyperthyroidism.
- Drug-induced liver injury (DILI) is a significant concern in pharmacotherapy.
- Hepatic necrosis is a severe form of liver injury.
Observation:
- A 42-year-old woman developed acute submassive hepatic necrosis after one year of PTU treatment for hyperthyroidism.
- The patient had no history of alcohol or drug abuse, and viral hepatitis markers were negative.
- Autopsy revealed a shrunken liver with a yellow, granular appearance, indicative of severe necrosis.
Findings:
- Microscopic examination showed submassive hepatic necrosis, bile stasis, chronic inflammation, and mild bile duct proliferation.
- While non-A, non-B hepatitis was considered, the clinical presentation strongly suggested PTU as the causative agent.
- This case represents the ninth documented instance and third fatal outcome of PTU-induced hepatic necrosis.
Implications:
- This case highlights the potential for severe hepatotoxicity from propylthiouracil, even with prolonged use.
- Clinicians should maintain a high index of suspicion for PTU-induced liver injury in patients presenting with unexplained hepatitis.
- Further research into the mechanisms and risk factors for PTU hepatotoxicity is warranted to improve patient safety.