Liver and Biliary Pathology Practice Questions

Q: A newborn presents with jaundice, conjugated hyperbilirubinemia, intrahepatic cholestasis, and elevated alkaline phosphatase. Liver biopsy reveals eosinophilic, PAS-positive cytoplasmic granules in hepatocytes. What is the most likely diagnosis?

Neonatal hepatitis. ***Neonatal hepatitis***- **Neonatal hepatitis** is a broad term encompassing various causes of **intrahepatic cholestasis** in infants, including viral infections and metabolic disorders like **Alpha 1 AT deficiency**.- The presence of eosinophilic, **PAS-positive cytoplasmic granules** in the liver biopsy is virtually pathognomonic for **Alpha 1 AT deficiency**, which is a leading identifiable cause grouped under this overall diagnosis.*Hypoplasia of the biliary tract*- This refers to a reduction or paucity of bile ducts (e.g., in **Alagille syndrome**) leading to cholestasis, but it is less common than other causes of intrahepatic cholestasis.- While it causes conjugated hyperbilirubinemia, the damage pattern is primarily related to duct paucity rather than the specific hepatocyte injury and granule accumulation of **A1AT deficiency**.*Choledochal cyst*- A **choledochal cyst** is an extrahepatic cause of cholestasis resulting from obstruction and dilatation of the **common bile duct**.- It typically presents with extrahepatic obstruction, and while it causes conjugated hyperbilirubinemia, it would not explain the classic **intrahepatic cellular findings** (PAS-positive granules) seen with A1AT deficiency.*Physiological*- **Physiological jaundice** is caused by the inability of the immature liver to process bilirubin, resulting exclusively in **unconjugated hyperbilirubinemia**.- Since this neonate presents with **conjugated hyperbilirubinemia**, physiological jaundice is excluded, as this finding always mandates immediate investigation for underlying pathology (**cholestasis**).

Q: A 58-year-old male with history of multiple sexual partners presented with anorexia and jaundice. The biopsy shows ground-glass opacity in the cells. What is the most probable diagnosis?

Hepatitis B. ***Hepatitis B***- The biopsy finding of **ground-glass opacity** in hepatocytes is pathognomonic for chronic **Hepatitis B Virus (HBV)** infection, caused by the accumulation of **Hepatitis B surface antigen (HBsAg)** in the endoplasmic reticulum [1].- The patient's presentation of jaundice and anorexia, combined with the risk factor of **multiple sexual partners**, is highly suggestive of HBV transmission [3].*Hepatitis A*- Hepatitis A is transmitted via the **fecal-oral route** and rarely leads to chronic liver disease, making it unlikely given the patient's risk profile and chronic signs [2].- Histologically, it causes predominantly **acute panlobular hepatitis** without the distinguishing ground-glass inclusions.*Hepatitis C*- Histologic evaluation of Hepatitis C often reveals **lymphoid aggregates** within the portal tracts and prominent **steatosis** (fatty change), rather than ground-glass inclusions [1].- While transmitted parenterally and potentially sexually, the absence of the characteristic HCV histological features makes this diagnosis less likely.*Hepatitis D*- Hepatitis D is a **defective virus** requiring co-infection or superinfection with **Hepatitis B** for replication.- Although often co-existing with HBV, the specific **ground-glass appearance** results from the accumulation of **HBsAg**, the protein produced primarily by the Hepatitis B virus [1]. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Liver and Gallbladder, pp. 843-844. [2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Liver and Gallbladder, pp. 844-845. [3] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Liver and Gallbladder, p. 838.

Q: Comment on the diagnosis of the gallbladder specimen provided: (Recent NEET Pattern 2016-17)

Cholesterolosis. ***Cholesterolosis*** - This condition is characterized by the accumulation of **cholesterol esters** within the macrophages in the lamina propria of the gallbladder wall. - Grossly, it appears as **yellow specks or streaks** on the mucosal surface, often described as a "strawberry gallbladder" due to the resemblance to strawberry seeds. *Cholesterol polyposis* - While cholesterolosis involves diffuse mucosal changes, **cholesterol polyps** are discrete, sessile or pedunculated lesions composed of cholesterol-laden macrophages. - These are typically single or few, rather than the widespread "strawberry" appearance seen in cholesterolosis. *Cholecystitis glandularis proliferans* - This is a rare, benign proliferative lesion of the gallbladder characterized by **hyperplasia of the mucosal glands** and muscularis, often forming intramural diverticula (Rokitansky-Aschoff sinuses) [1]. - It does not primarily involve cholesterol deposition and has a different macroscopic appearance. *Diverticulosis of gallbladder* - Diverticulosis of the gallbladder refers to the presence of **multiple outpouchings or diverticula** from the gallbladder wall. - These are typically **Rokitansky-Aschoff sinuses** [1], which are invaginations of the mucosa through the muscular layer, and are not primarily characterized by cholesterol deposition. **References:** [1] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Liver And Biliary System Disease, pp. 404-405.

Question 1

Which of the following statements are true about alpha-1-antitrypsin deficiency?

Accepted Answer

Emphysema, Fibrosis of portal tract, Diastase resistant positive hepatocytes

Answer

Autosomal dominant disease, Emphysema, Fibrosis of portal tract

Answer

Autosomal dominant disease, Fibrosis of portal tract, Diastase resistant positive hepatocytes

Answer

Emphysema, Diastase resistant positive hepatocytes

Question 2

In post-hepatic jaundice, the concentration of conjugated bilirubin in the blood is higher than that of unconjugated bilirubin because:

Accepted Answer

The conjugation process of bilirubin in the liver remains operative without any interference.

Answer

There is an increased rate of destruction of red blood cells.

Answer

The unconjugated bilirubin is trapped by the bile stone produced in the bile duct.

Answer

The UDP-glucuronosyltransferase activity is increased manifold in obstructive jaundice.

Question 3

In chronic viral hepatitis, what does grading refer to?

Accepted Answer

Grading refers to the extent of necrosis and inflammation.

Answer

Hepatitis A virus infection is a common cause in children.

Answer

Morphological classification into Chronic Active Hepatitis and Chronic Persistent Hepatitis is important.

Answer

Fatty change is pathognomic of Hepatitis C virus infection.

Question 4

All are important mechanisms in the formation of lithogenic bile EXCEPT?

Accepted Answer

Low calorie and cholesterol-rich diet

Answer

Increased biliary secretion of cholesterol

Answer

Increased activity of HMG CoA reductase

Answer

Clofibrate administration

Question 5

Increased IgA levels are seen in which of the following conditions?

Accepted Answer

Alcoholic cirrhosis

Answer

Alcoholic hepatitis

Answer

Microvescicular fatty change

Answer

Macrovesicular fatty change

Question 6

Vinyl chloride exposure is associated with which of the following malignancies?

Accepted Answer

Angiosarcoma of the liver

Answer

Angiofibroma of the nose

Answer

Hepatocellular carcinoma

Answer

Transitional cell carcinoma of the bladder

Question 7

A newborn presents with jaundice, conjugated hyperbilirubinemia, intrahepatic cholestasis, and elevated alkaline phosphatase. Liver biopsy reveals eosinophilic, PAS-positive cytoplasmic granules in hepatocytes. What is the most likely diagnosis?

Accepted Answer

Neonatal hepatitis

Answer

Physiological

Answer

Hypoplasia of the biliary tract

Answer

Choledochal cyst

Question 8

A 58-year-old male with history of multiple sexual partners presented with anorexia and jaundice. The biopsy shows ground-glass opacity in the cells. What is the most probable diagnosis?

Accepted Answer

Hepatitis B

Answer

Hepatitis D

Answer

Hepatitis A

Answer

Hepatitis C

Question 9

A liver biopsy shows ballooning degeneration of hepatocytes, Mallory-Denk bodies, and neutrophilic infiltration. The patient has a history of chronic alcohol abuse. What is the most likely diagnosis?

Accepted Answer

Alcoholic hepatitis

Answer

Viral hepatitis B

Answer

Primary biliary cholangitis

Answer

Non-alcoholic steatohepatitis (NASH)

Question 10

Comment on the diagnosis of the gallbladder specimen provided: (Recent NEET Pattern 2016-17)

Accepted Answer

Cholesterolosis

Answer

Cholesterol polyposis

Answer

Cholecystitis glandularis proliferans

Answer

Diverticulosis of gallbladder

Liver and Biliary Pathology — MCQs

Liver and Biliary Pathology — MCQs

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