This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Liver & Biliary Tract, Subject name: Pathology
Anti LKM antibodies are found in? 
Select and explain. 
A. Inflammatory myopathies, B. SLE, C. Autoimmune hepatitis, D. CREST syndrome
C: Autoimmune hepatitis
Answer: C: Autoimmune hepatitis 
Explanation: Ans is 'c' i.e. Autoimmune hepatitis * Anti-Liver Kidney Microsomal Antibodies (Anti-LKM antibody) are detected in the serum of patients with different types of acute or chronic liver disease. These antibodies are targeted against cytochrome P450 antigens. There are three kinds of Anti- Liver Kidney Microsomal Antibodies.TypeAntigenDiseaseAnti LKM 1Cytochrome P450 2D6Autoimmune hepatitis type II and Chronic hepatitis CAnti LKM 2Cytochrome P450 2C9Drug induced hepatitisAnti LKM 3Cytochrome P450 1A2Chronic Hepatitis D, Chronic active hepatitis in association with Autoimmune Polyendocrine Syndrome type I