All are metabolic causes of liver disease except:
**Core Concept**
The liver is a vital organ responsible for metabolism, detoxification, and energy production. Metabolic causes of liver disease arise from disorders affecting the liver's metabolic functions, leading to cellular damage and dysfunction.
**Why the Correct Answer is Right**
Metabolic causes of liver disease include genetic disorders, such as **glycogen storage diseases**, which impair glycogen metabolism. **Fatty liver disease**, also known as steatosis, occurs when there is an accumulation of excess fat in liver cells due to abnormal lipid metabolism. **Wilson's disease**, a genetic disorder, causes an accumulation of copper in the liver, leading to cellular damage and dysfunction. These conditions illustrate the liver's susceptibility to metabolic disorders.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as it does not specify a metabolic cause of liver disease.
**Option B:** This option is incorrect as it is a viral cause of liver disease, not a metabolic one. Viral hepatitis, such as hepatitis B and C, is caused by viral infections.
**Option C:** This option is incorrect as it is a toxic cause of liver disease, not a metabolic one. Toxins, such as acetaminophen, can cause liver damage and dysfunction.
**Clinical Pearl / High-Yield Fact**
Metabolic causes of liver disease often present with non-specific symptoms, such as fatigue, weight loss, and jaundice. A high index of suspicion and prompt diagnosis are essential to prevent progression and complications.
**Correct Answer:** B. This option is a viral cause of liver disease, not a metabolic one.