Mallory hyaline is characteristic feature of?
**Core Concept**
Mallory hyaline is a type of cytoplasmic inclusion body found in liver cells, which is associated with alcoholic liver disease. It is a characteristic pathological feature of steatohepatitis, a condition where liver inflammation and fat accumulation occur simultaneously.
**Why the Correct Answer is Right**
Mallory hyaline is composed of aggregated intermediate filaments, specifically cytokeratins 8 and 18, which are abnormally expressed and accumulate in the cytoplasm of liver cells. This accumulation is thought to be a result of the cellular response to oxidative stress and inflammation caused by chronic alcohol consumption. The presence of Mallory hyaline is a hallmark of alcoholic liver disease and can also be seen in other conditions such as non-alcoholic steatohepatitis (NASH).
**Why Each Wrong Option is Incorrect**
**Option A:** Mallory hyaline is not typically associated with viral hepatitis, which is characterized by different types of cytoplasmic inclusions, such as ground glass hepatocytes in hepatitis B infection.
**Option B:** Mallory hyaline is not a characteristic feature of autoimmune hepatitis, which is characterized by lymphocytic infiltration and interface hepatitis.
**Option C:** Mallory hyaline is not typically associated with primary biliary cirrhosis, which is characterized by cholestasis and destruction of bile ducts.
**Clinical Pearl / High-Yield Fact**
Mallory hyaline is a key histopathological feature that can help distinguish alcoholic liver disease from other causes of liver injury. It is often seen in the context of steatohepatitis, which is a precursor to cirrhosis.
**Correct Answer:** D. Alcoholic liver disease