A 40-year-old diabetic female presented with complaints of fatigue, abdominal distension, pruritis, anorexia, myalgia and skin rashes. On examination, icterus, hepatosplenomegaly and ascites were noted. Lab finidngs – elevated SGOT/SGPT levels, IgG levels and ANA titres, hypoalbuminemia, prolonged PT, normocytic normochromic coombs positive hemolytic anemia. A liver biopsy was conducted and HPE examination was done. All of the following antibodies are seen in the above condition except: –

**Question:** A 40-year-old diabetic female presented with complaints of fatigue, abdominal distension, pruritis, anorexia, myalgia and skin rashes. On examination, icterus, hepatosplenomegaly and ascites were noted. Lab findings - elevated SGOT/SGPT levels, IgG levels and ANA titres, hypoalbuminemia, prolonged PT, normocytic normochromic coombs positive hemolytic anemia. A liver biopsy was conducted and HPE examination was done. All of the following antibodies are seen in the above condition except: -

A. Anti-Smith (Sm) antibodies
B. Anti-LKM-1 antibodies
C. Anti-Ro/SSA antibodies
D. Anti-La/SSB antibodies

**Correct Answer:**

**Core Concept:** Autoimmune hepatitis is a type of hepatitis characterized by an autoimmune response against liver cells. It is classified into two types: Autoimmune hepatitis type 1 (AIH-1) and Autoimmune hepatitis type 2 (AIH-2). Both types are characterized by elevated liver enzymes, hypoalbuminemia, and coombs positive hemolytic anemia. AIH-1 is associated with autoantibodies against nuclear antigens, while AIH-2 is associated with autoantibodies against microsomal antigens.

**Why the Correct Answer is Right:**

In the described scenario, we are dealing with Autoimmune Hepatitis Type 1 (AIH-1), as the patient has elevated liver enzymes, hypoalbuminemia, and Coombs positive hemolytic anemia. AIH-1 is characterized by autoantibodies against nuclear antigens, which are not typically associated with the antibodies mentioned in the question.

**Why Each Wrong Option is Incorrect:**

A. Anti-Smith (Sm) antibodies: These are typically associated with primary biliary cholangitis (PBC), which is a different type of autoimmune liver disease and not AIH-1.

B. Anti-LKM-1 antibodies: These are associated with primary biliary cholangitis (PBC), another type of autoimmune liver disease, not AIH-1.

C. Anti-Ro/SSA antibodies: These are associated with Sjogren's syndrome and systemic lupus erythematosus (SLE), which are different conditions than AIH-1. AIH-1 is not associated with this antibody.

D. Anti-La/SSB antibodies: These are associated with Sjogren's syndrome and systemic lupus erythematosus (SLE), which are different conditions than AIH-1. AIH-1 is not associated with this antibody.

**Clinical Pearls:**

Autoimmune hepatitis Type 1 (AIH-1) is a rare condition characterized by autoantibodies against nuclear antigens. The correct antibodies associated with AIH-1 are anti-Smith (Sm) antibodies, not anti-LKM-1, anti-Ro/SSA, or anti-La/SSB antibodies.

Understanding the specific antibodies associated with autoimmune hepatitis types is crucial

✓ Correct Answer: B. Anti-LKM 2 Ab