[Autoimmune hepatitis induced by isotretionine].

Area of Science:

• Hepatology
• Dermatology
• Clinical Case Study

Background:

• Autoimmune hepatitis is a chronic liver disease characterized by immune system attack on liver cells.
• Isotretinoin is a common treatment for severe acne, known for potential side effects including liver enzyme elevation.

Observation:

• A 16-year-old female with Hashimoto's hypothyroidism developed elevated liver enzymes (ALT, AST) after 3 months of Isotretinoin therapy.
• Autoimmune markers such as positive antinuclear antibody (ANA) titers and elevated IgG levels were detected.
• Liver biopsy confirmed findings consistent with autoimmune hepatitis.

Findings:

• The patient presented with significant elevations in AST (756 U/L) and ALT (1199 U/L) with normal bilirubin.
• Viral hepatitis serology was negative, ruling out infectious causes.
• Corticosteroid therapy with Prednisone led to improvement in liver function tests after Isotretinoin discontinuation.

Implications:

• This case suggests a potential link between Isotretinoin use and the development of autoimmune hepatitis, a previously unreported association.
• Clinicians should consider monitoring liver function and autoimmune markers in patients on Isotretinoin, especially those with unexplained liver abnormalities.
• Further research is warranted to elucidate the mechanism and prevalence of Isotretinoin-induced autoimmune hepatitis.