Liver and Biliary Pathology Practice Questions

Q: A 44-year-old patient presented with jaundice and had a needle prick injury 2 years back. Based on the provided histological features of a liver biopsy, classify the type of hepatitis.

Hepatitis B virus induced hepatitis. ***Hepatitis B virus induced hepatitis*** - **Needle prick injury** 2 years ago with chronic presentation strongly suggests **HBV transmission**, as it's commonly transmitted through blood exposure and can cause chronic infection. - Histological features likely show **ground-glass hepatocytes** with **sanded nuclei** (Councilman bodies), which are pathognomonic for chronic HBV infection. *Hepatitis C virus induced hepatitis* - While HCV can also be transmitted through **needle prick injuries**, histological features typically show **lymphoid follicles**, **portal inflammation**, and **bile duct damage**. - HCV often presents with **steatosis** and **fibrosis** rather than the ground-glass appearance characteristic of HBV. *Hepatitis A virus induced hepatitis* - HAV is transmitted through the **fecal-oral route**, not through needle prick injuries, making this unlikely given the exposure history. - HAV causes **acute hepatitis** that resolves completely within weeks to months, not chronic disease lasting 2 years. *Hepatitis E virus induced hepatitis* - HEV is also transmitted via **fecal-oral route** and is not associated with parenteral transmission like needle prick injuries. - HEV typically causes **acute, self-limiting hepatitis** and rarely progresses to chronic infection, except in immunocompromised patients.

Q: Bile infarct is related to which of the following conditions?

Extrahepatic cholestasis. **Explanation:** **Bile infarcts** are a characteristic histological feature of severe, prolonged **extrahepatic cholestasis** (Option C) [1]. When there is a mechanical obstruction of the large bile ducts (e.g., gallstones, strictures, or tumors), the resulting back-pressure causes bile to leak from the intrahepatic bile ducts into the surrounding liver parenchyma [1]. The detergent action of the accumulated bile acids causes focal necrosis of hepatocytes, creating pale, feathery areas of degeneration known as "bile infarcts." **Why other options are incorrect:** * **Hepatitis B (Option A):** This typically presents with "ground-glass hepatocytes" (due to HBsAg accumulation) and lobular inflammation, not bile-induced necrosis. * **Dubin-Johnson Syndrome (Option B):** This is a functional defect in bilirubin excretion (MRP2 mutation). While it causes a "black liver" due to pigment accumulation in lysosomes, it does not cause bile duct obstruction or infarcts. * **Intrahepatic Cholestasis (Option D):** While it involves bile stasis (e.g., PBC or PSC), bile infarcts are much more classically associated with the high-pressure mechanical obstruction seen in extrahepatic causes [1]. **High-Yield NEET-PG Pearls:** * **Feathery Degeneration:** The earliest histological sign of cholestasis where hepatocytes appear swollen with foamy cytoplasm. * **Bile Lakes:** Larger, extracellular accumulations of bile seen specifically in extrahepatic obstruction. * **Mallory-Denk Bodies:** Can sometimes be seen in chronic cholestasis, though they are more classic for Alcoholic Liver Disease. * **Key Distinction:** Extrahepatic obstruction requires surgical/endoscopic intervention, whereas intrahepatic cholestasis is usually managed medically [1]. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Liver and Gallbladder, pp. 860-868.

Q: What is the most common paraneoplastic syndrome associated with hepatocellular carcinoma?

Hypoglycemia. **Explanation:** Hepatocellular Carcinoma (HCC) is well-known for producing various paraneoplastic syndromes [1]. Among these, **Hypoglycemia** is the most common, occurring in approximately 5–27% of patients. **1. Why Hypoglycemia is correct:** Hypoglycemia in HCC occurs via two primary mechanisms: * **Type A (Pseudodiabetes):** Occurs in rapidly growing tumors where the metabolic demand of the tumor cells exceeds the liver's glucose production capacity. * **Type B:** Occurs due to the tumor’s secretion of **IGF-II (Insulin-like Growth Factor-II)** or "big" IGF-II, which has insulin-mimetic effects and stimulates glucose uptake by tissues. **2. Analysis of Incorrect Options:** * **Hypertension:** Not a recognized paraneoplastic syndrome of HCC. While HCC can be associated with portal hypertension due to cirrhosis or venous invasion, systemic hypertension is unrelated. * **Hypercalcemia:** Though it occurs in HCC (due to PTHrP secretion), it is significantly less common than hypoglycemia [1]. It is more classically associated with Squamous Cell Carcinoma of the lung or Renal Cell Carcinoma [1]. * **Erythrocytosis:** This occurs in about 3–10% of HCC cases due to the ectopic production of **Erythropoietin (EPO)** [1]. While a high-yield association, it is statistically less frequent than hypoglycemia. **Clinical Pearls for NEET-PG:** * **Most common paraneoplastic syndrome in HCC:** Hypoglycemia. * **Most common cause of HCC worldwide:** Hepatitis B Virus (HBV). * **Tumor Marker:** Alpha-fetoprotein (AFP) is the gold standard; however, it can be normal in up to 30% of cases. * **Aflatoxin B1 exposure** (from *Aspergillus flavus*) is a major risk factor, specifically causing a mutation in the **p53 gene (codon 249)**. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Neoplasia, pp. 338-339.

Question 1

A 44-year-old patient presented with jaundice and had a needle prick injury 2 years back. Based on the provided histological features of a liver biopsy, classify the type of hepatitis.

Accepted Answer

Hepatitis B virus induced hepatitis

Answer

Hepatitis C virus induced hepatitis

Answer

Hepatitis A virus induced hepatitis

Answer

Hepatitis E virus induced hepatitis

Question 2

Ballooning of hepatocytes is not associated with which of the following conditions?

Accepted Answer

Chronic viral hepatitis

Answer

Non-alcoholic steatohepatitis

Answer

Alcoholic liver disease

Answer

Acute viral hepatitis

Question 3

Which clinical test is done to assess hepatic function related to bleeding disorders?

Accepted Answer

PTT

Answer

CT, BT

Answer

Factor 8

Answer

None of the above

Question 4

OVAL cells are seen in the stem cells of which organ?

Accepted Answer

Liver

Answer

Skin

Answer

Cornea

Answer

Bone

Question 5

A 42-year-old man experiences malaise and increasing icterus for 2 weeks. Physical examination shows jaundice, but there are no other significant findings. Serologic test results are positive for IgM anti-HAV and negative for anti-HCV, HBsAg, and IgM anti-HBc. Which of the following outcomes is most likely to occur in this man?

Accepted Answer

Complete recovery

Answer

Chronic active hepatitis

Answer

Fulminant hepatitis

Answer

Hepatocellular carcinoma

Question 6

Bile infarct is related to which of the following conditions?

Accepted Answer

Extrahepatic cholestasis

Answer

Hepatitis B

Answer

Dubin Johnson syndrome

Answer

Intrahepatic cholestasis

Question 7

Ductopenia is a characteristic finding in which of the following conditions?

Accepted Answer

Alagille syndrome

Answer

Primary biliary cholangitis

Answer

Caroli's disease

Answer

Extrahepatic portal venous obstruction (EHPVO)

Question 8

What is the most common paraneoplastic syndrome associated with hepatocellular carcinoma?

Accepted Answer

Hypoglycemia

Answer

Hypertension

Answer

Hypercalcemia

Answer

Erythrocytosis

Question 9

Mallory denk bodies are seen in all of the following conditions except?

Accepted Answer

Hemochromatosis

Answer

Wilson's disease

Answer

Alcoholic fatty liver disease

Answer

Non-alcoholic fatty liver disease

Question 10

Granulomatous hepatitis is not caused by which of the following?

Accepted Answer

Metastatic carcinoma

Answer

Blastomycosis

Answer

Tuberculosis

Answer

Cat scratch disease

Liver and Biliary Pathology — MCQs

Liver and Biliary Pathology — MCQs

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