Alcoholic and Non-alcoholic Fatty Liver Disease — MCQs
A 50-year-old man with a history of alcohol abuse is found to have elevated liver enzymes, and a liver biopsy shows the microscopic features of steatosis. If the patient abstains from further drinking, this condition will most likely evolve into which of the following?
Which of the following is the MOST common risk factor for hepatocellular carcinoma worldwide?
Which of the following statements about alcoholic hepatitis is false?
Which one of the following is not true about hepatocellular carcinoma?
Focal or confluent periportal necrosis, along with ballooning degeneration of hepatocytes, with or without Mallory bodies and megamitochondria, is suggestive of?
Which of the following is a sign of reversible injury in alcoholic liver disease?
Patient with Type I diabetes mellitus, with complaints of polyuria. Which of the following will occur normally in his body?
All of the following are complications of cirrhosis, EXCEPT:
A chronic alcoholic patient presents with increasing abdominal girth. A liver biopsy reveals reddish inclusions within the hepatocytes. What are these inclusions composed of?
Which of the following is a histopathological feature of extrahepatic biliary atresia?
Alcoholic and Non-alcoholic Fatty Liver Disease Indian Medical PG Practice Questions and MCQs
Question 1: A 50-year-old man with a history of alcohol abuse is found to have elevated liver enzymes, and a liver biopsy shows the microscopic features of steatosis. If the patient abstains from further drinking, this condition will most likely evolve into which of the following?
- A. Acute liver injury
- B. Chronic liver disease
- C. Cirrhosis
- D. Complete resolution (Correct Answer)
Explanation: ***Complete regression*** - Abstaining from alcohol can lead to **complete regression** of steatosis as the liver has a remarkable ability to heal and regenerate when inflammation is not present [1]. - With sustained abstinence, the liver enzymes can return to normal and the steatosis may resolve fully within months [1]. *Chronic hepatitis* - Chronic hepatitis is characterized by ongoing **inflammation** and potential liver damage, which is not typically seen when a patient successfully abstains from alcohol. - This condition usually occurs after prolonged liver injury, rather than as a direct evolution from steatosis with abstinence. *Acute hepatitis* - Acute hepatitis usually presents with **sudden onset of liver inflammation** often caused by viral infections or toxins, rather than alcoholic liver steatosis. - In the context of alcohol, acute hepatitis would indicate recent and severe liver damage, which differs when the patient avoids further alcohol. *Hyperplastic nodules* - Hyperplastic nodules are associated with advanced liver disease, often seen in conditions like **cirrhosis**, rather than directly evolving from steatosis after alcohol cessation. - These nodules develop as a compensatory response in chronic liver disease, which is not expected if the steatosis resolves.
Question 2: Which of the following is the MOST common risk factor for hepatocellular carcinoma worldwide?
- A. HCV
- B. Alcohol
- C. HBV (Correct Answer)
- D. Aflatoxin exposure
Explanation: HBV - **Hepatitis B virus (HBV)** infection is the leading cause of **hepatocellular carcinoma (HCC)** globally, especially in regions with high endemicity like Southeast Asia and sub-Saharan Africa. - Chronic HBV infection leads to persistent **inflammation and fibrosis** in the liver, increasing the risk of malignant transformation. HCV - **Hepatitis C virus (HCV)** is a significant risk factor for HCC, particularly in Western countries. - While a major cause of chronic liver disease, its overall global prevalence as a cause of HCC is slightly lower than HBV. Alcohol - **Chronic alcohol consumption** can lead to alcoholic liver disease, cirrhosis, and subsequently increase the risk of HCC. - However, worldwide, chronic viral hepatitis (HBV and HCV) accounts for a larger proportion of HCC cases compared to alcohol-related liver disease. Aflatoxin exposure - **Aflatoxins**, particularly **aflatoxin B1**, are potent liver carcinogens produced by certain fungi (e.g., *Aspergillus flavus*) that contaminate food crops. - While significant in some regions, especially when combined with HBV infection, its global impact as a sole risk factor for HCC is less widespread compared to viral hepatitis.
Question 3: Which of the following statements about alcoholic hepatitis is false?
- A. Gamma glutamyl transferase is raised
- B. Alkaline phosphatase is raised
- C. SGOT is raised > SGPT
- D. SGPT is raised > SGOT (Correct Answer)
Explanation: ***SGPT is raised > SGOT*** - In **alcoholic hepatitis**, the ratio of **AST (SGOT)** to **ALT (SGPT)** is typically **2:1 or higher**, meaning SGOT is usually significantly higher than SGPT. - This is because alcohol depletes **pyridoxal phosphate**, a cofactor for ALT, leading to relatively lower ALT levels. *Gamma glutamyl transferase is raised* - **Gamma-glutamyl transferase (GGT)** is frequently elevated in **alcoholic liver disease**, including alcoholic hepatitis [1]. - It serves as a sensitive marker for **biliary tract injury** and **alcohol consumption** [1]. *SGOT is raised > SGPT* - This statement is **true** for alcoholic hepatitis, as the **AST (SGOT)** to **ALT (SGPT)** ratio is typically **2:1 or greater**. - The disproportionately high AST is a characteristic feature reflecting the **mitochondrial damage** caused by alcohol within hepatocytes [2]. *Alkaline phosphatase is raised* - **Alkaline phosphatase (ALP)** can be elevated in alcoholic hepatitis, although usually to a lesser extent than in obstructive jaundice [1]. - Its elevation often reflects superimposed **cholestasis** or **biliary inflammation** [1].
Question 4: Which one of the following is not true about hepatocellular carcinoma?
- A. AFP is a marker
- B. Metastasis occurs late (Correct Answer)
- C. HBV is a risk factor
- D. Common in cirrhosis
Explanation: Metastasis occurs late - This statement is **false** because **hepatocellular carcinoma (HCC)** is known to **metastasize early**, often disseminating through the **portal vein** to the lung, bone, and brain [1]. - Early metastasis is a significant factor contributing to the **poor prognosis** of HCC even when the primary tumor is relatively small. *AFP is a marker* - **Alpha-fetoprotein (AFP)** is a widely used **tumor marker** for HCC, particularly in surveillance and diagnosis [1]. - While elevated AFP levels can indicate HCC, they are **not always present** and can also be elevated in other conditions such as hepatitis or cirrhosis. *HBV is a risk factor* - **Hepatitis B virus (HBV)** infection is a **major global risk factor** for developing HCC, especially in endemic regions. - Chronic HBV infection leads to **chronic inflammation** and **fibrosis** in the liver, significantly increasing the risk of malignant transformation. *Common in cirrhosis* - HCC is overwhelmingly common in patients with **cirrhosis**, regardless of its etiology (e.g., chronic hepatitis, alcohol abuse, non-alcoholic fatty liver disease) [1]. - The **regenerative nodules** and chronic inflammation associated with cirrhosis create a fertile ground for the development of **dysplastic foci** and ultimately HCC [1].
Question 5: Focal or confluent periportal necrosis, along with ballooning degeneration of hepatocytes, with or without Mallory bodies and megamitochondria, is suggestive of?
- A. Acute Hepatitis B
- B. Chronic Hepatitis B
- C. Alcoholic liver injury (Correct Answer)
- D. Primary HCC
Explanation: ***Alcoholic liver injury*** - Characterized by **focal or confluent periportal necrosis** and **ballooning degeneration** of hepatocytes, often in the context of alcohol abuse [1]. - Presence of **Mallory bodies** and **megamitochondria** further supports this diagnosis, linking it to alcohol consumption [1,2]. *Chronic Hepatitis B* - Typically presents with **chronic inflammation** and **fibrosis**, not focal necrosis and ballooning degeneration [2]. - Lack of **Mallory bodies**, which are more specific to alcoholic liver damage [1,2]. *Primary HCC* - Usually associated with **mass lesions** in the liver rather than necrosis and ballooning degeneration. - HCC is characterized by malignant changes and **poorly differentiated cells**, not primarily necrotic hepatocytes. *Acute Hepatitis B* - More commonly presents with a diffuse inflammatory response and **hepatocyte necrosis**, but not specifically with ballooning degeneration and Mallory bodies [2]. - The necrosis seen is often more general rather than focal or periportal specifically. **References:** [1] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Liver And Biliary System Disease, pp. 389-390. [2] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Liver And Biliary System Disease, pp. 388-389.
Question 6: Which of the following is a sign of reversible injury in alcoholic liver disease?
- A. Cytoplasmic vacuole (Correct Answer)
- B. Pyknosis (nuclear shrinkage)
- C. Loss of cell membrane integrity
- D. Nuclear karyolysis (nuclear dissolution)
Explanation: ***Cytoplasmic vacuole*** - The presence of **cytoplasmic vacuoles** in liver cells indicates fatty change, which is a **reversible injury** in alcoholic liver disease [1][2]. - This injury allows the liver to recover if **alcohol consumption** is ceased, highlighting its reversible nature [1]. *Nuclear karyolysis* - **Nuclear karyolysis** signifies severe cellular damage and necrosis, indicating an irreversible process [2]. - This feature involves the dissolution of the nucleus, which does not align with reversible injury. *Loss of cell membrane* - Loss of the **cell membrane** indicates irreversible damage, leading to cell death rather than a reversible condition [2]. - This change is associated with significant cellular impairment, contrary to the concept of recovery. *Pyknosis* - **Pyknosis**, the condensation of chromatin in the nucleus, suggests irreversible cellular injury and impending necrosis [2]. - It is often a precursor to cell death and is not indicative of reversible damage in liver pathology. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Liver and Gallbladder, pp. 848-850. [2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Cellular Responses to Stress and Toxic Insults: Adaptation, Injury, and Death, pp. 51-53.
Question 7: Patient with Type I diabetes mellitus, with complaints of polyuria. Which of the following will occur normally in his body?
- A. Increased protein synthesis
- B. Glycogenesis in muscle
- C. Decreased cholesterol synthesis
- D. Increased conversion of fatty acid to acetyl CoA (Correct Answer)
Explanation: ***Increased conversion of fatty acid to acetyl CoA*** - In response to **insulin deficiency** and **hyperglycemia** in Type 1 diabetes, the body shifts from carbohydrate to fat metabolism. - This leads to increased **lipolysis**, releasing fatty acids that are then converted to **acetyl CoA** in the liver for energy or ketone body production. *Incorrect: Increased protein synthesis* - **Insulin** is an **anabolic hormone** that promotes protein synthesis; its deficiency in Type 1 diabetes leads to decreased, not increased, protein synthesis. - Instead, there's often increased **protein catabolism** to provide substrates for gluconeogenesis. *Incorrect: Glycogenesis in muscle* - **Insulin** is required for the uptake of glucose into muscle cells and its subsequent conversion to **glycogen (glycogenesis)**. - In Type 1 diabetes, the lack of insulin significantly impairs muscle glucose uptake and glycogenesis. *Incorrect: Decreased cholesterol synthesis* - In uncontrolled Type 1 diabetes, there is actually **increased cholesterol synthesis**, not decreased. - The increased availability of **acetyl CoA** (from enhanced fatty acid oxidation) provides substrate for cholesterol synthesis via the **HMG-CoA reductase pathway**. - This contributes to the **dyslipidemia** commonly seen in poorly controlled diabetes, including elevated LDL cholesterol and total cholesterol levels.
Question 8: All of the following are complications of cirrhosis, EXCEPT:
- A. Spontaneous bacterial peritonitis
- B. Portal hypertension
- C. Hepatic encephalopathy
- D. Hypercalcemia (Correct Answer)
Explanation: ***Hypercalcemia*** - While liver disease can lead to **metabolic derangements**, severe hypercalcemia is not a direct or typical complication of **cirrhosis** itself. - Causes of hypercalcemia are usually related to **parathyroid dysfunction**, **malignancy**, or specific drug effects. *Spontaneous bacterial peritonitis* - This is a common and serious infection of the **ascitic fluid** that occurs in patients with cirrhosis, often without an obvious source of infection. - It is a direct consequence of impaired immune function and bacterial translocation in **advanced liver disease**. *Portal hypertension* - This condition is a hallmark of cirrhosis, resulting from increased resistance to blood flow through the fibrotic liver [1]. - It leads to many other complications such as **ascites**, **esophageal varices**, and **splenomegaly** [1]. *Hepatic encephalopathy* - This is a neuropsychiatric syndrome caused by the accumulation of toxins normally cleared by the liver, such as **ammonia**, in the systemic circulation [1]. - It is a significant complication of **cirrhosis** and often indicates advanced liver failure [1].
Question 9: A chronic alcoholic patient presents with increasing abdominal girth. A liver biopsy reveals reddish inclusions within the hepatocytes. What are these inclusions composed of?
- A. Hemosiderin
- B. Intermediate filaments (Correct Answer)
- C. Triglycerides
- D. Glycogen
Explanation: ***Intermediate filaments*** - In chronic alcoholic patients, reddish inclusions within hepatocytes are characteristic of **Mallory bodies** (also known as alcoholic hyaline) [1]. - Mallory bodies are aggregates of **intermediate filaments**, specifically **cytokeratin filaments**, that have been damaged. *Hemosiderin* - **Hemosiderin** is an iron-storage complex and appears as **golden-brown granules** within cells [1]. - While iron overload can occur in alcoholic liver disease, hemosiderin is not the primary component of the reddish inclusions described as Mallory bodies. *Triglycerides* - **Triglycerides** accumulate in hepatocytes in **fatty liver disease** (steatosis), which is common in alcoholics [1]. - These appear as clear lipid vacuoles rather than reddish inclusions. *Glycogen* - **Glycogen** is a branched polysaccharide of glucose, found in the cytoplasm, and appears as clear vacuoles or small, periodic acid-Schiff (PAS)-positive granules. - Hepatic glycogen accumulation is not described as reddish inclusions in the context of alcoholic liver disease. **References:** [1] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Liver And Biliary System Disease, pp. 388-390.
Question 10: Which of the following is a histopathological feature of extrahepatic biliary atresia?
- A. Hepatocyte ballooning degeneration
- B. Parenchymal cholestasis
- C. Marked bile duct proliferation (Correct Answer)
- D. Fibrosis of the hepatic duct
Explanation: ***Marked bile duct proliferation*** - Extrahepatic biliary atresia is characterized by the progressive obliteration of the **extrahepatic bile ducts**, leading to a compensatory **proliferation of intrahepatic bile ducts**. [1] - This proliferation is a hallmark histopathological finding, reflecting the body's attempt to establish alternative drainage pathways. [1] *Hepatocyte ballooning degeneration* - This feature is more characteristic of acute and chronic **hepatitis**, particularly alcoholic hepatitis or non-alcoholic steatohepatitis (NASH). - While it can occur in severe cholestasis due to toxin accumulation, it is not a primary or specific finding for biliary atresia. *Parenchymal cholestasis* - **Parenchymal cholestasis** refers to the accumulation of bile within the hepatocytes and bile canaliculi, which can be seen in many forms of liver disease including biliary atresia. - However, it is a general sign of impaired bile flow within the liver and not a specific diagnostic feature distinguishing biliary atresia from other cholestatic conditions. [1] *Fibrosis of the hepatic duct* - While **fibrosis** does occur in biliary atresia, it typically affects the **extrahepatic bile ducts** themselves (leading to their obliteration). - The question asks for a histopathological feature, and while fibrosis is present, **marked bile duct proliferation** within the liver parenchyma is a more specific and prominent microscopic feature used in diagnosis. [1] **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Liver and Gallbladder, pp. 862-864.
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