Hepatobiliary Surgery Practice Questions

Q: A 43-year-old man presents with continuous vomiting and abdominal guarding on palpation, raising suspicion for acute cholecystitis. Which of the following investigations can exclude acute cholecystitis in this patient?

Radionuclide imaging. **Explanation:** The diagnosis of acute cholecystitis is primarily clinical, supported by imaging. The correct answer is **Radionuclide imaging (HIDA scan)** because of its exceptionally high **negative predictive value (NPV)**. **1. Why Radionuclide Imaging is Correct:** HIDA (Hepatobiliary Iminodiacetic Acid) scan is considered the **gold standard** for diagnosing acute cholecystitis. The underlying mechanism involves the intravenous injection of a radioactive tracer that is excreted by the liver into the bile. In a healthy individual, the tracer fills the gallbladder. In acute cholecystitis, the cystic duct is obstructed (usually by a stone). Therefore, if the gallbladder is **visualized** within 60 minutes, the patency of the cystic duct is confirmed, effectively **excluding** acute cholecystitis. **2. Why Other Options are Incorrect:** * **Ultrasound (A):** While it is the **initial investigation of choice** due to its availability and ability to show gallstones, wall thickening, and pericholecystic fluid, it cannot definitively exclude the diagnosis as it is operator-dependent and may miss functional obstruction. * **ERCP (B):** This is an invasive procedure used primarily for managing choledocholithiasis (CBD stones) or biliary obstruction. It is not a diagnostic tool for acute cholecystitis. * **OCG (C):** Oral Cholecystography is an obsolete investigation. It requires a functioning gallbladder to concentrate dye over 24-48 hours, making it useless in an acute setting. **Clinical Pearls for NEET-PG:** * **Initial Investigation of Choice:** Ultrasonography (Look for "Murphy’s Sign" on USG). * **Most Sensitive/Gold Standard:** HIDA Scan (Radionuclide imaging). * **Diagnostic Hallmark on HIDA:** Non-visualization of the gallbladder despite visualization of the CBD and duodenum. * **False Positives in HIDA:** Can occur in prolonged fasting, total parenteral nutrition (TPN), or severe liver disease.

Q: Strasberg's Class B bile duct injury means:

Occlusion of a branch of the biliary tree. ### Explanation The **Strasberg Classification** is a widely used system to categorize laparoscopic bile duct injuries, expanding upon the earlier Bismuth classification. **1. Why the Correct Answer is Right:** **Option B** is correct because **Strasberg Type B** refers to the **occlusion** (usually by clipping or ligation) of an aberrant or sectoral bile duct, most commonly the **right sectoral duct**. Because the duct is occluded and not leaking, it often presents late with segmental cholestasis or atrophy of that specific liver segment, rather than acute peritonitis. **2. Analysis of Incorrect Options:** * **Option A (Type A):** This involves a **bile leak** from a minor duct (like the cystic duct or a small duct in the liver bed) that remains in communication with the common bile duct. * **Option C (Type C):** This involves a **transection without ligation** of an aberrant/sectoral duct. Unlike Type B, this duct is *not* in communication with the common bile duct, leading to a persistent bile leak. * **Option D (Type E):** Circumferential injuries or strictures of the **major bile ducts** (Common Hepatic Duct/Common Bile Duct) are classified as **Type E (E1 to E5)**, which is essentially the Bismuth classification. **3. Clinical Pearls for NEET-PG:** * **Type A** is the most common type of injury post-laparoscopic cholecystectomy. * **Type D** refers to a lateral (partial) injury to the major bile ducts. * **Mnemonic for Strasberg A-D:** * **A:** **A**llows leak (minor duct). * **B:** **B**locked (occluded sectoral duct). * **C:** **C**ut (transected sectoral duct, leaking). * **D:** **D**amaged wall (lateral injury to major duct). * **Management:** Type A is usually managed by ERCP and stenting; Type E often requires surgical reconstruction (Roux-en-Y Hepaticojejunostomy).

Q: Which of the following is NOT included in Charcot's triad?

Gallbladder lump. **Explanation:** **Charcot’s Triad** is the classic clinical presentation of **Acute Cholangitis**, which occurs due to biliary obstruction (most commonly by gallstones) followed by an ascending bacterial infection. The correct answer is **Gallbladder lump**, as it is not a component of this triad. 1. **Why Gallbladder lump is the correct answer:** A palpable gallbladder lump is more characteristic of **Courvoisier’s Law** (associated with periampullary carcinoma) or a **Mucocele** of the gallbladder. In acute cholangitis, the gallbladder is often shrunken or not palpable due to chronic cholecystitis, and the pathology primarily involves the common bile duct (CBD). 2. **Why the other options are incorrect:** * **Fever (A):** Present in nearly 95% of cases, often accompanied by chills and rigors due to bacteremia. * **Pain (B):** Specifically, Right Upper Quadrant (RUQ) pain caused by biliary distension and inflammation. * **Jaundice (C):** Resulting from the obstruction of bile flow into the duodenum, leading to conjugated hyperbilirubinemia. **High-Yield Clinical Pearls for NEET-PG:** * **Reynolds’ Pentad:** If Charcot’s Triad is accompanied by **Hypotension (Shock)** and **Altered Mental Status**, it is known as Reynolds’ Pentad, indicating life-threatening obstructive suppurative cholangitis. * **Management:** The gold standard for both diagnosis and therapeutic decompression in acute cholangitis is **ERCP (Endoscopic Retrograde Cholangiopancreatography)**. * **Tokyo Guidelines (TG18):** Modern diagnosis relies on these criteria, which include signs of systemic inflammation, cholestasis, and imaging evidence of biliary dilatation/etiology.

Q: Which of the following is NOT a risk factor for cholangiocarcinoma?

Hepatolithiasis. **Explanation:** The question asks for the factor that is **NOT** a risk factor for cholangiocarcinoma. While chronic inflammation of the biliary tree is the common denominator for most risk factors, **Choledocholithiasis (Option D)**—the presence of stones in the common bile duct—is generally not considered a direct independent risk factor for cholangiocarcinoma. In contrast, **Hepatolithiasis (Option A)**, or intrahepatic stones, is a well-established risk factor due to the chronic recurrent pyogenic cholangitis and mucosal irritation it causes. *Note: There appears to be a discrepancy in the provided key; medically, Choledocholithiasis is the least associated, while Hepatolithiasis is a major risk factor.* **Analysis of Options:** * **Hepatolithiasis (A):** Strongly associated with intrahepatic cholangiocarcinoma, particularly in East Asia, due to chronic biliary stasis and infection. * **Hepatitis C (B):** Recent studies and high-yield texts now recognize HCV (and HBV) as significant risk factors for intrahepatic cholangiocarcinoma, likely due to chronic liver inflammation and cirrhosis. * **Clonorchis sinensis (C):** This liver fluke is a classic "textbook" risk factor. It causes chronic biliary inflammation and hyperplasia, leading to malignancy. * **Choledocholithiasis (D):** While it causes acute biliary issues, simple stones in the CBD do not carry the same oncogenic risk as primary sclerosing cholangitis or fluke infestations. **Clinical Pearls for NEET-PG:** * **Most common risk factor (West):** Primary Sclerosing Cholangitis (PSC). * **Most common risk factor (East):** Liver flukes (*Clonorchis sinensis, Opisthorchis viverrini*) and Hepatolithiasis. * **Congenital risk factor:** Choledochal cysts (especially Type I and IV). * **Tumor Marker:** CA 19-9 is the most commonly used marker for monitoring. * **Klatskin Tumor:** A hilar cholangiocarcinoma occurring at the confluence of the right and left hepatic ducts.

Q: Which of the following statements about hydatid cyst of the liver is FALSE?

Hepatic resection is never performed.. ### **Explanation** **1. Why Option A is the Correct (False) Statement:** While conservative surgeries (like deroofing or PAIR) are more common, **hepatic resection (formal lobectomy or segmentectomy) is a recognized surgical option.** It is specifically indicated for large, multiple cysts confined to one lobe, cysts with significant parenchymal destruction, or those located peripherally where resection is safer than evacuation. Therefore, stating it is "never performed" is medically incorrect. **2. Analysis of Incorrect Options (True Statements):** * **Option B:** Laparoscopic aspiration and drainage (often using specialized systems like the Palanivelu hydatid trocar) are standard minimally invasive approaches for uncomplicated cysts. * **Option C:** The **right lobe** is the most common site (approx. 75-80%) because it receives the bulk of portal blood flow, which carries the *Echinococcus granulosus* oncospheres from the intestine. * **Option D:** Most hydatid cysts are **asymptomatic** and are discovered incidentally on imaging. Symptoms (pain, jaundice, or anaphylaxis) usually only occur if the cyst grows large enough to cause pressure or ruptures. ### **Clinical Pearls for NEET-PG:** * **Causative Agent:** *Echinococcus granulosus* (Dog is the definitive host; Human is the accidental intermediate host). * **Imaging Gold Standard:** Ultrasound (Gharbi Classification) is the first-line investigation. Look for the "Water-lily sign" (detached endocyst). * **Medical Management:** **Albendazole** is the drug of choice, started pre-operatively to reduce cyst tension and prevent secondary hydatidosis. * **PAIR Technique:** Puncture, Aspiration, Injection (of scolicidal agents like 20% hypertonic saline or 95% ethanol), and Re-aspiration. **Contraindicated** in cysts communicating with the biliary tree.

Q: What is true about choledochal cysts?

Excision is the ideal treatment. **Explanation:** Choledochal cysts are congenital cystic dilatations of the biliary tree. The management of these cysts has evolved significantly, shifting from simple drainage to complete surgical excision. **1. Why "Excision is the ideal treatment" is correct:** The gold standard treatment for most choledochal cysts (specifically Types I, II, and IV) is **complete surgical excision** of the cyst followed by biliary reconstruction, typically via a **Roux-en-Y Hepaticojejunostomy**. The primary reason for excision is the high risk of **cholangiocarcinoma** (malignancy) arising from the cyst wall due to chronic inflammation and the reflux of pancreatic enzymes into the biliary tree (associated with an anomalous pancreaticobiliary ductal junction). **2. Why the other options are incorrect:** * **Option A:** Choledochal cysts are **not always extrahepatic**. While Type I is the most common and is extrahepatic, **Type IV-A** involves both intrahepatic and extrahepatic ducts, and **Type V (Caroli’s Disease)** is purely intrahepatic. * **Options B & D:** Internal drainage (Cystojejunostomy) or external drainage are no longer the treatments of choice. Leaving the cyst wall intact maintains the risk of **malignancy, stone formation, and recurrent cholangitis**. Drainage is only considered a temporary palliative measure in extremely unstable patients. **High-Yield Clinical Pearls for NEET-PG:** * **Todani Classification:** Type I (Saccular/Fusiform dilatation of CBD) is the most common (80-90%). Type III is a Choledochocele. * **Classic Triad:** Jaundice, right upper quadrant pain, and a palpable mass (present in only ~20% of cases, mostly in children). * **Investigation of Choice:** MRCP (Magnetic Resonance Cholangiopancreatography). * **Complication:** The risk of adenocarcinoma increases with age; hence, early prophylactic excision is mandatory.

Q: Which of the following statements about gallstones is false?

Surgery should be performed on most cases.. **Explanation:** The correct answer is **B**, as the statement "Surgery should be performed on most cases" is false. **1. Why Option B is the Correct Answer (False Statement):** The management of gallstones (cholelithiasis) is primarily guided by the presence of symptoms. Approximately **80% of patients with gallstones are asymptomatic** ("silent stones"). Current surgical guidelines (SAGES/IHPBA) recommend **expectant management (observation)** for asymptomatic gallstones, as the risk of developing complications is only 1-2% per year. Prophylactic cholecystectomy is only indicated in specific high-risk scenarios (e.g., porcelain gallbladder, stones >3cm, or patients undergoing bariatric surgery). **2. Analysis of Other Options:** * **Option A (True):** Common Bile Duct (CBD) stones (choledocholithiasis) carry a high risk of life-threatening complications like **ascending cholangitis** and **acute pancreatitis**. Therefore, they must be cleared (via ERCP or surgery) regardless of the duct diameter or symptoms. * **Option C (True):** Parasitic infestations, particularly ***Clonorchis sinensis*** (Oriental liver fluke) and ***Ascaris lumbricoides***, can cause biliary stasis and act as a nidus for stone formation (typically primary brown pigment stones). * **Option D (True):** Obstruction of the cystic duct by a gallstone is the primary pathophysiology behind **acute cholecystitis**. **Clinical Pearls for NEET-PG:** * **Gold Standard Investigation:** Ultrasonography (USG) of the abdomen (high sensitivity/specificity). * **Most Common Type:** Cholesterol stones (Western world); however, mixed stones are very common globally. * **Risk Factors (The 5 F's):** Fat, Female, Fertile, Forty, Fair. * **Saint’s Triad:** Cholelithiasis, Hiatus hernia, and Diverticulosis.

Question 1

A 43-year-old man presents with continuous vomiting and abdominal guarding on palpation, raising suspicion for acute cholecystitis. Which of the following investigations can exclude acute cholecystitis in this patient?

Accepted Answer

Radionuclide imaging

Answer

Ultrasound

Answer

ERCP (Endoscopic Retrograde Cholangiopancreatography)

Answer

OCG (Oral Cholecystography)

Question 2

What is true about the Pringle maneuver?

Accepted Answer

The Pringle maneuver is also known as total inflow occlusion.

Answer

Clamping in the foramen of Winslow occludes the portal triad and IVC.

Answer

Controls bleeding from the portal vein, IVC, and hepatic artery.

Answer

All of the above are true.

Question 3

Strasberg's Class B bile duct injury means:

Accepted Answer

Occlusion of a branch of the biliary tree

Answer

Bile leak from a minor duct

Answer

Injury of a bile duct not in communication with the common bile duct

Answer

Circumferential injury to major bile ducts

Question 4

Which of the following is NOT included in Charcot's triad?

Accepted Answer

Gallbladder lump

Answer

Fever

Answer

Pain

Answer

Jaundice

Question 5

Which of the following is NOT a risk factor for cholangiocarcinoma?

Accepted Answer

Hepatolithiasis

Answer

Hepatitis C

Answer

Clonorchis sinensis

Answer

Choledocholithiasis

Question 6

Which of the following statements about hydatid cyst of the liver is FALSE?

Accepted Answer

Hepatic resection is never performed.

Answer

Laparoscopic aspiration of the cyst is performed.

Answer

The cyst is most commonly located in the right lobe of the liver.

Answer

The cyst is mostly asymptomatic.

Question 7

What is the best screening method for Mirizzi syndrome?

Accepted Answer

Endoscopic retrograde cholangiopancreatography (ERCP)

Answer

Ultrasound abdomen

Answer

Contrast-enhanced computed tomography (CECT) abdomen

Answer

Plain X-Ray abdomen

Question 8

What is true about choledochal cysts?

Accepted Answer

Excision is the ideal treatment

Answer

Always extrahepatic

Answer

Treatment is cystojejunostomy

Answer

Drainage is the treatment of choice

Question 9

Which of the following is not considered a precancerous lesion of the gallbladder?

Accepted Answer

Biliary ascariasis

Answer

Porcelain gallbladder

Answer

Typhoid carrier state

Answer

Adenomatous hyperplasia of the gallbladder epithelium

Question 10

Which of the following statements about gallstones is false?

Accepted Answer

Surgery should be performed on most cases.

Answer

Intervention should be performed if gallstones are present in the bile duct, irrespective of the duct diameter.

Answer

Gallstones can be caused by parasitic infestation.

Answer

Gallstones can lead to cholecystitis.

Hepatobiliary Surgery — MCQs

Hepatobiliary Surgery — MCQs

On this page

Practice by Chapter

Want unlimited practice?