Hepatobiliary Surgery Practice Questions

Q: Which of the following is NOT an indication for cholecystectomy in a patient with asymptomatic gallstones?

Diabetes mellitus. In modern surgical practice, **asymptomatic gallstones** (silent stones) are generally managed with observation ("expectant management") because the risk of developing complications is lower than the risk of surgical intervention. ### Why Diabetes Mellitus is the Correct Answer Historically, **Diabetes Mellitus (Option A)** was considered an indication for prophylactic cholecystectomy due to fears of rapidly progressing gangrenous cholecystitis. However, current evidence shows that diabetics do not have a higher risk of developing symptoms or complications compared to non-diabetics. Therefore, asymptomatic stones in a diabetic patient are **not** an indication for surgery. ### Explanation of Incorrect Options (Indications for Surgery) * **Sickle Cell Anaemia (Option B):** Prophylactic surgery is recommended because it is difficult to differentiate a painful "sickle cell crisis" from "biliary colic/cholecystitis." Removing the gallbladder simplifies future diagnostic dilemmas. * **Porcelain Gallbladder (Option C):** This refers to intramural calcification of the gallbladder wall. It is associated with a significantly increased risk of **Gallbladder Carcinoma** (up to 7–25%), necessitating removal. * **High Prevalence Areas (Option D):** In regions with high rates of gallbladder cancer (e.g., Chile, parts of North India), the threshold for surgery is lower to prevent malignancy. ### NEET-PG High-Yield Pearls Other indications for cholecystectomy in asymptomatic patients include: 1. **Stone size >3 cm:** Increased risk of malignancy. 2. **Gallbladder Polyps >10 mm:** High malignant potential. 3. **Anomalous Pancreaticobiliary Duct Junction (APBDJ):** High risk of cancer. 4. **Patients undergoing Bariatric Surgery:** To prevent rapid weight loss-induced stone complications. 5. **Transplant candidates:** To avoid post-transplant immunosuppressed biliary sepsis.

Q: What is choledocholithotomy?

Removal of a common bile duct stone. **Explanation:** **Choledocholithotomy** is a surgical procedure involving an incision into the **common bile duct (CBD)** to remove stones. The term is derived from "choledocho-" (referring to the CBD), "-lith-" (stone), and "-otomy" (to cut into). 1. **Why Option D is Correct:** The CBD is formed by the union of the common hepatic duct and the cystic duct. When stones migrate from the gallbladder or form de novo in the CBD (choledocholithiasis), they can cause obstructive jaundice or cholangitis. Choledocholithotomy is the definitive surgical intervention to clear these stones, often followed by the placement of a **T-tube** to ensure biliary drainage and allow for post-operative cholangiography. 2. **Why Other Options are Incorrect:** * **Option A:** Removal of a ureteric stone is termed **ureterolithotomy**. * **Option B:** Removal of a gallstone (without removing the gallbladder) is rarely performed today but is historically termed **cholecystolithotomy**. * **Option C:** Surgical removal of the gallbladder is **cholecystectomy**, which is the gold standard for symptomatic cholelithiasis. **NEET-PG High-Yield Clinical Pearls:** * **Gold Standard:** Currently, the preferred management for CBD stones is **ERCP with endoscopic sphincterotomy**, followed by laparoscopic cholecystectomy. * **Indications for T-tube:** After a formal choledocholithotomy, a T-tube is inserted to prevent bile leak and stricture. It is typically removed after **10–14 days** once a "T-tube cholangiogram" confirms no residual stones. * **Primary vs. Secondary Stones:** Secondary stones (migrated from the gallbladder) are usually cholesterol-based, while primary CBD stones are typically **brown pigment stones** associated with stasis or infection.

Q: Which of the following is NOT a complication of gallstones?

Diverticulosis. **Explanation:** The correct answer is **B. Diverticulosis**. Diverticulosis refers to the formation of small, bulging pouches (diverticula) in the digestive tract, most commonly the sigmoid colon. It is a condition of the large intestine caused by high intraluminal pressure and weakened muscular walls; it has no pathophysiological link to gallstones. **Analysis of Options:** * **Mucocele (Option A):** This occurs when a gallstone chronically impacts the cystic duct. The gallbladder becomes distended with clear, sterile mucus (hydrops) because the bile is absorbed and the gallbladder mucosa continues to secrete mucus. * **Acute Cholangitis (Option C):** This is a life-threatening bacterial infection of the biliary tree. It occurs when a gallstone migrates into the common bile duct (choledocholithiasis), causing obstruction and subsequent stasis of bile, which becomes infected. * **Empyema of the Gallbladder (Option D):** This is a complication of acute cholecystitis where the gallbladder becomes filled with purulent material (pus) due to secondary bacterial infection of stagnant bile. **High-Yield Clinical Pearls for NEET-PG:** * **Charcot’s Triad:** Fever, jaundice, and RUQ pain (indicative of Acute Cholangitis). * **Reynold’s Pentad:** Charcot’s triad plus hypotension and altered mental status (indicative of obstructive suppurative cholangitis). * **Mirizzi Syndrome:** Extrinsic compression of the common hepatic duct by a stone impacted in the cystic duct or gallbladder neck. * **Gallstone Ileus:** A late complication where a large stone enters the bowel via a cholecystenteric fistula, typically causing obstruction at the **ileocecal valve**.

Q: A saccular diverticulum of the extrahepatic bile duct in a choledochal cyst is classified as which type?

Type II. This question refers to the **Todani Classification**, which is the standard system used to categorize choledochal cysts based on their anatomical location and morphology. ### **Explanation of the Correct Answer** **Type II** choledochal cysts are characterized as a **true diverticulum** of the extrahepatic bile duct. They appear as a saccular outgrowth protruding from the wall of the common bile duct (CBD), while the rest of the duct remains normal in diameter. They are rare, accounting for only about 2–3% of all cases. ### **Analysis of Incorrect Options** * **Type I (Most Common):** Involves cystic or fusiform dilatation of the **entire extrahepatic bile duct**. It is the most frequently encountered type (75–85%). * **Type III (Choledochocele):** This is a cystic dilatation of the **intraduodenal portion** of the common bile duct. It is often managed endoscopically. * **Type IV:** Characterized by **multiple cysts**. * **IVa:** Both intrahepatic and extrahepatic dilatations. * **IVb:** Multiple extrahepatic dilatations only. ### **Clinical Pearls for NEET-PG** * **Type V (Caroli’s Disease):** Dilatation involves only the **intrahepatic** bile ducts. If associated with congenital hepatic fibrosis, it is called Caroli’s Syndrome. * **Classic Triad:** Jaundice, right upper quadrant pain, and a palpable mass (present in only <20% of patients, more common in children). * **Gold Standard Investigation:** MRCP (Magnetic Resonance Cholangiopancreatography). * **Surgical Management:** For Types I, II, and IV, the treatment of choice is **complete cyst excision** with Roux-en-Y hepaticojejunostomy to prevent the high risk of cholangiocarcinoma.

Q: All of the following are causes of acalculous cholecystitis except?

Schistosomiasis. **Explanation:** Acalculous cholecystitis refers to acute inflammation of the gallbladder in the absence of gallstones. It typically occurs in critically ill patients due to a combination of **bile stasis** and **gallbladder wall ischemia**. **Why Schistosomiasis is the Correct Answer:** Schistosomiasis (specifically *S. haematobium*) is classically associated with **Squamous Cell Carcinoma of the urinary bladder**. While some parasitic infections like *Clonorchis sinensis* or *Ascaris lumbricoides* are linked to biliary disease and stone formation, Schistosomiasis is not a recognized cause of acute acalculous cholecystitis. **Analysis of Incorrect Options:** * **Bile duct stricture:** Causes mechanical obstruction to bile flow, leading to significant bile stasis, which is a primary trigger for acalculous inflammation. * **Prolonged Total Parenteral Nutrition (TPN):** TPN leads to a lack of enteral stimulation, resulting in decreased Cholecystokinin (CCK) release. This causes gallbladder stasis and the formation of biliary sludge, a high-risk factor for acalculous cholecystitis. * **Major operations:** Severe physiological stress, dehydration, and prolonged fasting post-surgery lead to increased bile viscosity and ischemia of the gallbladder (supplied by the end-arterial cystic artery), triggering inflammation. **High-Yield Clinical Pearls for NEET-PG:** * **Risk Factors:** Burns, trauma, sepsis, prolonged mechanical ventilation, and diabetes. * **Pathogenesis:** Increased bile viscosity + Ischemia = Gallbladder gangrene (more common in acalculous than calculous types). * **Diagnosis:** Ultrasound is the initial test (showing wall thickening >4mm and pericholecystic fluid), but **HIDA scan** (showing non-visualization of the gallbladder) is the most sensitive. * **Management:** Percutaneous cholecystostomy is often the preferred initial treatment in unstable, critically ill patients.

Q: Which of the following is considered a precancerous lesion of the gall bladder?

Porcelain gall bladder. **Explanation:** **1. Why Porcelain Gallbladder is Correct:** A **Porcelain Gallbladder** refers to the intramural calcification of the gallbladder wall, often resulting from chronic cholecystitis. It is classically considered a **premalignant condition**. While recent studies suggest the risk of progression to Gallbladder Carcinoma (GBC) is lower than previously thought (approx. 7–15%), it remains a high-yield surgical indication for **prophylactic cholecystectomy**, especially when the calcification is "stippled" or "patchy" rather than a continuous broad band. **2. Analysis of Incorrect Options:** * **Mirizzi Syndrome:** This is an extrinsic compression of the common hepatic duct by a stone impacted in the cystic duct or Hartmann’s pouch. While it causes obstructive jaundice and recurrent cholangitis, it is an inflammatory complication, not a direct precancerous lesion. * **Cholesterosis (Strawberry Gallbladder):** This involves the deposition of cholesterol esters in the lamina propria (submucosa) of the gallbladder wall. It is a benign condition and carries no increased risk of malignancy. * **Acalculous Cholecystitis:** This is acute inflammation of the gallbladder in the absence of stones, typically seen in critically ill patients (burns, sepsis, TPN). It is an acute surgical emergency but does not lead to cancer. **3. High-Yield Clinical Pearls for NEET-PG:** * **Other Precancerous Lesions:** Gallbladder polyps (>10 mm), Adenomyomatosis (specifically the segmental type), and Anomalous Pancreaticobiliary Duct Junction (APBDJ). * **Risk Factors for GBC:** Cholelithiasis (stones >3 cm), Salmonella typhi carrier state, and "Indian" ethnicity (highest incidence in North India). * **Imaging:** Porcelain gallbladder is easily identified on a plain X-ray or CT scan as a rim of calcification in the right upper quadrant.

Q: Which of the following statements is true regarding hepatocellular carcinoma?

All of the above.. Hepatocellular Carcinoma (HCC) is the most common primary malignancy of the liver, and its pathogenesis is closely linked to chronic liver injury and regeneration. **Explanation of Options:** * **Option A:** Chronic viral hepatitis is the leading global cause of HCC. **HBV** can cause HCC even without cirrhosis due to its ability to integrate into the host genome (insertional mutagenesis). **HCV** causes HCC primarily through the pathway of chronic inflammation and cirrhosis. * **Option B:** Approximately **80-90% of HCC cases** occur in the background of **cirrhosis**. Any condition leading to cirrhosis (Alcoholic Liver Disease, NAFLD/NASH, Hemochromatosis, Alpha-1 antitrypsin deficiency) significantly increases the risk of malignant transformation. * **Option C:** The **Fibrolamellar variant** is a distinct subtype of HCC typically seen in **younger patients (teens to 20s)**. Crucially, it occurs in **non-cirrhotic livers**, has no association with HBV/HCV, and usually presents with normal Alpha-fetoprotein (AFP) levels. It carries a better prognosis compared to conventional HCC. Since all statements are medically accurate, **Option D** is the correct answer. **High-Yield Clinical Pearls for NEET-PG:** * **Tumor Marker:** Alpha-fetoprotein (AFP) is the most common marker; however, **PIVKA-II** (Protein Induced by Vitamin K Absence) is more specific. * **Radiology:** The classic triad on Triphasic CT is **Intense arterial enhancement** followed by **portal venous washout**. * **Screening:** High-risk patients (cirrhotics) should undergo screening every 6 months with **USG + AFP**. * **Metastasis:** The most common site of extrahepatic spread is the **Lungs**.

Q: Which of the following investigations is the investigation of choice to diagnose gallstones?

Ultrasound abdomen. **Explanation:** **Ultrasound (USG) Abdomen** is the investigation of choice (IOC) for diagnosing gallstones (cholelithiasis). It is highly sensitive (>95%) and specific. The characteristic findings include an echogenic focus within the gallbladder lumen that casts a **posterior acoustic shadow** and moves with changes in the patient's position. It is preferred because it is non-invasive, cost-effective, lacks ionizing radiation, and can simultaneously evaluate gallbladder wall thickness and the biliary tree. **Analysis of Incorrect Options:** * **X-ray Abdomen:** Only 10–15% of gallstones are radiopaque (contain enough calcium to be seen). Most stones are cholesterol-based and radiolucent, making X-ray an unreliable screening tool. * **ERCP (Endoscopic Retrograde Cholangiopancreatography):** This is an invasive procedure primarily used for the **management** (stone extraction) of Common Bile Duct (CBD) stones, not for diagnosing simple gallstones. * **MRCP (Magnetic Resonance Cholangiopancreatography):** While highly accurate for visualizing the biliary anatomy and detecting CBD stones (choledocholithiasis), it is expensive and unnecessary for diagnosing stones localized to the gallbladder. **High-Yield Clinical Pearls for NEET-PG:** * **Gold Standard for Cholecystitis:** HIDA Scan (Radionuclide scan) is the most accurate test for acute cholecystitis (shows non-visualization of the gallbladder). * **IOC for Choledocholithiasis:** MRCP (Diagnostic); ERCP (Therapeutic). * **WES Triad:** (Wall-Echo-Shadow) A USG finding seen when the gallbladder is completely filled with stones. * **Most common type of stone:** Cholesterol stones (Western world); Pigment stones are more common in certain Asian populations or hemolytic states.

Question 1

Which of the following is NOT an indication for cholecystectomy in a patient with asymptomatic gallstones?

Accepted Answer

Diabetes mellitus

Answer

Sickle cell anaemia

Answer

Porcelain gallbladder

Answer

Gallbladder cancer in high prevalence areas

Question 2

What is choledocholithotomy?

Accepted Answer

Removal of a common bile duct stone

Answer

Removal of a ureteric stone

Answer

Removal of a gallstone

Answer

Removal of the gallbladder

Question 3

A 29-year-old woman on oral contraceptives presents with abdominal pain. A computed tomography (CT) scan of the abdomen demonstrates a large hematoma of the right liver with the suggestion of an underlying liver lesion. Her hemoglobin is 6, and she is transfused 2 units of packed red blood cells and 2 units of fresh frozen plasma. Two hours after starting the transfusion, she develops respiratory distress and requires intubation. She is not volume overloaded clinically, but her chest x-ray shows bilateral pulmonary infiltrates. Which of the following is the management strategy of choice?

Accepted Answer

Stop the transfusion and continue supportive respiratory care

Answer

Continue the transfusion and administer an antihistamine

Answer

Stop the transfusion and administer a diuretic

Answer

Stop the transfusion, perform bronchoscopy, and start broad-spectrum empiric antibiotics

Question 4

Which of the following is NOT a complication of gallstones?

Accepted Answer

Diverticulosis

Answer

Mucocele

Answer

Acute cholangitis

Answer

Empyema of the gallbladder

Question 5

A saccular diverticulum of the extrahepatic bile duct in a choledochal cyst is classified as which type?

Accepted Answer

Type II

Answer

Type I

Answer

Type III

Answer

Type IV

Question 6

All of the following are causes of acalculous cholecystitis except?

Accepted Answer

Schistosomiasis

Answer

Bile duct stricture

Answer

Prolonged TPN

Answer

Major operations

Question 7

Which of the following is considered a precancerous lesion of the gall bladder?

Accepted Answer

Porcelain gall bladder

Answer

Mirrizi syndrome

Answer

Cholesterosis

Answer

Acalculous Cholecystitis

Question 8

Which of the following statements is true regarding hepatocellular carcinoma?

Accepted Answer

All of the above.

Answer

It is associated with Hepatitis B virus (HBV) and Hepatitis C virus (HCV).

Answer

Cirrhosis is a predisposing factor.

Answer

The fibrolamellar variety is not associated with cirrhosis.

Question 9

Which of the following investigations is the investigation of choice to diagnose gallstones?

Accepted Answer

Ultrasound abdomen

Answer

X-ray abdomen

Answer

ERCP

Answer

MRCP

Question 10

What is an exception to Courvoisier's law?

Accepted Answer

Double impaction

Answer

Portal lymphadenopathy

Answer

Periampullary carcinoma

Answer

None of the above

Hepatobiliary Surgery — MCQs

Hepatobiliary Surgery — MCQs

On this page

Practice by Chapter

Want unlimited practice?