Corticosteroid-Induced Liver Injury

Introduction to Liver Injury

Corticosteroids can cause hepatotoxicity, though this is relatively rare compared to other medications 1
The condition being treated with steroids may itself cause liver function test (LFT) abnormalities, such as autoimmune conditions like inflammatory bowel disease, which can have hepatic manifestations 5
Immune checkpoint inhibitor therapy often requires steroids and can independently cause hepatitis 6, 7

Corticosteroids can cause liver function test elevations through multiple mechanisms, including drug-induced liver injury, immune-mediated hepatitis, and metabolic effects, presenting typically within 1-6 weeks after starting therapy 1, 2
Paradoxical autoimmune-like hepatitis triggered by steroids can manifest with marked transaminase elevation, positive autoantibodies in some cases, and liver biopsy showing lymphocytic infiltration 3
Methylprednisolone has been specifically associated with drug-induced autoimmune-like hepatitis 3
Steroids can cause or exacerbate fatty liver disease through insulin resistance, weight gain, dyslipidemia, and altered hepatic lipid metabolism 4

Assessing the pattern of LFT abnormality is crucial, including hepatocellular, cholestatic, or mixed patterns 8
Ruling out other common causes such as viral hepatitis, alcohol consumption, other hepatotoxic medications, and underlying liver disease progression is necessary 8
Specific tests to consider include complete blood count with platelets, comprehensive metabolic panel, GGT and creatine kinase to differentiate muscle injury from liver injury, autoimmune markers if autoimmune hepatitis is suspected, and hepatobiliary imaging to rule out biliary obstruction 4, 7

For mild elevations (< 3× ULN), continue monitoring LFTs every 1-2 weeks and consider dose reduction if clinically appropriate 8
For moderate elevations (3-5× ULN), consider temporary dose reduction, more frequent monitoring, and evaluate for alternative causes 8
For severe elevations (> 5× ULN) or symptoms, discontinue steroids if possible or reduce to lowest effective dose, consider hepatology consultation, and rule out other causes of acute liver injury 1, 8
If steroids must be restarted after LFT normalization, consider using a different corticosteroid preparation or lower dose with close monitoring 1