Hepatobiliary Surgery Practice Questions

Q: A patient with cholangitis underwent surgical intervention. The investigation shown in the post-operative period on the 10th day is:

T-tube cholangiogram. ***T-tube cholangiogram*** - Performed on **post-operative day 10** to assess **biliary tree patency** and check for **residual stones** before T-tube removal. - The **T-tube** is placed during **choledochotomy** in cholangitis surgery, and contrast is injected through it to visualize the biliary system. *ERCP* - **Endoscopic retrograde cholangiopancreatography** is typically a **therapeutic procedure** used pre-operatively or for complications. - Not routinely performed on **POD 10** as a post-operative investigation after T-tube placement. *MRCP* - **Magnetic resonance cholangiopancreatography** is a **non-invasive imaging** modality that doesn't require contrast injection. - Cannot be performed through a **T-tube** and is not the standard investigation shown on POD 10. *PTC* - **Percutaneous transhepatic cholangiography** involves **needle puncture** through the liver to access bile ducts. - Not indicated on **POD 10** when a **T-tube is already in place** providing direct biliary access.

Q: Which of the following statements about gall stones is true?

There is an increased incidence of stones in diabetics. **Explanation:** **1. Why Option B is Correct:** Patients with Diabetes Mellitus have a significantly higher incidence of gallstones. This is primarily due to **autonomic neuropathy**, which leads to gallbladder dysmotility and stasis. Additionally, diabetics often have higher levels of triglycerides and cholesterol, which increases the lithogenicity of bile. The combination of stasis and altered bile composition facilitates stone formation. **2. Why the Other Options are Incorrect:** * **Option A:** Gallstones are actually **twice as common in women** as in men. This is attributed to female sex hormones (estrogen increases cholesterol secretion into bile, and progesterone causes gallbladder stasis). * **Option C:** Only about **10-15% of gallstones are radio-opaque** (visible on X-ray). The vast majority (85-90%) are radiolucent, which is why Ultrasonography (USG) is the gold standard investigation, not a plain abdominal X-ray. * **Option D:** Gallstones vary in size but are typically measured in millimeters (usually **5–20 mm**). A stone >50 mm (5 cm) is extremely rare and would occupy almost the entire gallbladder lumen. **Clinical Pearls for NEET-PG:** * **The 5 F’s Risk Factors:** Fat, Female, Fertile, Forty, and Fair. * **Most Common Type:** In the West, cholesterol stones are most common; in Asia, pigment stones (black/brown) are frequently seen. * **Investigation of Choice:** USG Abdomen (Sensitivity/Specificity >95%). * **Black Pigment Stones:** Associated with chronic hemolysis (e.g., Sickle cell anemia, Hereditary Spherocytosis). * **Brown Pigment Stones:** Associated with biliary tract infections and stasis.

Q: Which of the following is FALSE regarding hepatic adenoma?

It is more common in older females.. **Explanation:** Hepatic Adenoma (HA) is a benign liver tumor primarily seen in **young women of childbearing age (20–40 years)**. The statement that it is more common in older females is **false**, making it the correct answer. **1. Why Option C is False:** The epidemiology of hepatic adenoma is strongly linked to hormonal influence. It occurs almost exclusively in young females due to the high prevalence of estrogen exposure. In older, post-menopausal women, the incidence drops significantly unless there is exogenous hormone replacement. **2. Analysis of Other Options:** * **Option A (Benign lesion):** Correct. It is a benign proliferation of hepatocytes without bile ducts or Kupffer cells. However, it carries a risk of malignant transformation to Hepatocellular Carcinoma (HCC), especially the β-catenin mutated subtype. * **Option B (Associated with OCP use):** Correct. There is a strong dose-dependent and duration-dependent relationship between OCP use and the development of adenomas. Regression often occurs upon discontinuation of the pill. * **Option C (Cold on isotope scan):** Correct. Hepatic adenomas lack normal Kupffer cells. Therefore, on a **Technetium-99m sulfur colloid scan**, they do not take up the isotope and appear as "cold" spots. This helps differentiate them from Focal Nodular Hyperplasia (FNH), which usually appears "hot" or "isointense." **High-Yield Clinical Pearls for NEET-PG:** * **Risk of Rupture:** Large adenomas (>5 cm) have a high risk of spontaneous rupture and intraperitoneal hemorrhage, especially during pregnancy. * **Management:** Asymptomatic small lesions ( 5 cm) or those in males (high malignancy risk) require surgical resection. * **Key Associations:** OCP use, Anabolic steroids, and Glycogen Storage Disease (Type I and III). * **Imaging:** "Stealth lesion" on non-contrast CT; classic "cold" scan on sulfur colloid.

Q: What is the most common complication after ERCP?

Acute Pancreatitis. **Explanation:** **1. Why Acute Pancreatitis is the Correct Answer:** Post-ERCP Pancreatitis (PEP) is the most frequent complication following the procedure, occurring in approximately **3% to 10%** of unselected patients (and up to 25% in high-risk groups). The underlying mechanism involves mechanical trauma to the papilla, hydrostatic injury from contrast injection into the pancreatic duct, or chemical/enzymatic injury. It is clinically defined by new-onset upper abdominal pain and an elevation of serum amylase/lipase ≥3 times the upper limit of normal, 24 hours after the procedure. **2. Why the Other Options are Incorrect:** * **B. Acute Cholangitis:** While a serious risk, it occurs in only about 1% of cases. It is usually secondary to incomplete biliary drainage or contaminated equipment. * **C. Acute Cholecystitis:** This is a rare complication (approx. 0.2–0.5%), typically occurring when contrast is injected into a gallbladder with pre-existing stones or cystic duct obstruction. * **D. Duodenal Perforation:** This occurs in <1% of cases. It is usually "Type II" (peri-ampullary) related to sphincterotomy or "Type I" (lateral wall) related to the endoscope itself. **3. High-Yield Clinical Pearls for NEET-PG:** * **Most common complication:** Acute Pancreatitis. * **Most common cause of death post-ERCP:** Acute Pancreatitis. * **Prophylaxis:** Rectal **Indomethacin** or Diclofenac (NSAIDs) is the gold standard for preventing PEP in high-risk patients. * **Risk Factors:** Female gender, young age, Sphincter of Oddi dysfunction (SOD), and difficult cannulation. * **Early sign of perforation:** Surgical emphysema or retroperitoneal air on X-ray/CT.

Q: A 30-year-old female presented with pain in the right upper quadrant of the abdomen after 4 days of cholecystectomy. On USG, it showed a significant collection in RUQ. What will you do further?

USG guided aspiration of content. ***USG guided aspiration of content***- A significant, symptomatic intra-abdominal collection post-cholecystectomy (4 days) strongly suggests a localized **abscess**, **hematoma**, or **biloma**, demanding urgent **source control**.- **Percutaneous drainage** guided by ultrasound or CT is the gold standard, minimally invasive treatment for accessible, well-defined fluid collections in the immediate postoperative period.*Re-explore laparoscopically*- Surgical **re-exploration** is more invasive and is typically reserved for cases where percutaneous drainage fails, or if there is diffuse peritonitis or active bleeding.- Since the USG shows a localized collection, the less invasive **percutaneous approach** is the initial management choice.*Higher antibiotics*- Antibiotics alone are insufficient to manage a significant, symptomatic fluid collection, especially if it is an **abscess** (pus collection).- Drainage (source control) followed by appropriate antibiotics is the required sequence to prevent systemic infection and **sepsis**.*MRCP*- **MRCP** (Magnetic Resonance Cholangiopancreatography) is a diagnostic test primarily used to evaluate the **biliary tree** for leaks or strictures.- While biliary tree integrity is important, the immediate therapeutic priority for a defined, symptomatic collection is drainage, not further imaging, unless a large, high-pressure **biloma** is highly suspected and the patient is stable.

Q: A 46-year-old male had a tumor in his left lobe of liver, so left sided hemi hepatectomy was planned. Which of the following segments of the liver will be resected in this procedure?

2, 3 & 4. ***2, 3 and 4***- **Left hemi hepatectomy** involves the surgical removal of the entire **left functional lobe** of the liver, which contributes to approximately 40% of the total liver volume.- In the **Couinaud segmental classification**, the left functional lobe includes segments **II** (left lateral superior), **III** (left lateral inferior), and **IV** (left medial segment/quadrate lobe). *1, 2 & 3*- Segment **I** is the **caudate lobe**, which is typically considered functionally distinct and often preserved during a standard left hemi hepatectomy, unless the tumor involves this segment. - Resecting only segments II and III is known as a **left lateral sectionectomy** or left bisegmentectomy (corresponding to the anatomical left lobe). *5, 6, 7 & 8*- These segments constitute the **right functional lobe** of the liver (segments **V** and **VIII** are anterior; **VI** and **VII** are posterior). - Resection of these four segments would be classified as a **right hemi hepatectomy** (right lobectomy). *2, 3, 4 & 5*- This combination includes the entire left functional lobe (2, 3, 4) plus segment **V**, which is the **anterior inferior segment** of the right lobe. - Removing the left lobe plus segment V constitutes an **extended left hemi hepatectomy** (or left trisectionectomy), exceeding the definition of a standard left hemi hepatectomy.

Q: Which of the following is the classical triad of acute cholangitis?

Pain, jaundice, fever. ***Correct: Pain, jaundice, fever*** - This is **Charcot's triad**, the classical presentation of acute cholangitis - Represents the three cardinal clinical features: **RUQ abdominal pain**, **jaundice** (from biliary obstruction), and **fever with rigors** (from ascending infection) - Acute cholangitis is a bacterial infection of the bile ducts, typically occurring due to biliary obstruction (most commonly from choledocholithiasis) - When hypotension and altered mental status are added to Charcot's triad, it becomes **Reynolds pentad** (indicating severe/suppurative cholangitis) *Incorrect: Pain, ↑ WBC, ↑ Bilirubin* - While these findings may be present in acute cholangitis, this is not the classical **clinical triad** - Laboratory findings are supportive but not part of the classical triad definition *Incorrect: Fever, jaundice, ↑ WBC* - Missing the key clinical feature of **RUQ pain** - Includes laboratory finding (↑ WBC) rather than clinical presentation *Incorrect: Pain, jaundice, shock* - This combination represents part of **Reynolds pentad** but is missing fever - Reynolds pentad = Charcot's triad + hypotension + altered mental status - Not the classical triad being asked in the question

Q: A 55-year-old diabetic male develops sudden-onset severe abdominal pain 3 days after an uncomplicated laparoscopic cholecystectomy. Examination reveals peritonitis with guarding and rigidity. Abdominal X-ray shows free air under the diaphragm. What is the most likely diagnosis?

Duodenal perforation. ***Duodenal perforation*** - The combination of **sudden, severe peritonitis** (guarding and rigidity) and **free air under the diaphragm** 3 days post-surgery is pathognomonic for a **perforated hollow viscus**. - Iatrogenic injury to adjacent structures, particularly the **duodenum** (first part is near the gallbladder bed), is a recognized complication during laparoscopic cholecystectomy that can lead to delayed presentation of perforation. - **Free intraperitoneal air** on X-ray confirms hollow organ perforation and mandates urgent surgical exploration. *Bile duct injury with bile peritonitis* - Bile leaks (e.g., from the cystic duct stump or duct of Luschka) cause **bile peritonitis**, resulting in inflammatory pain and signs of peritonitis, but they **do not introduce gas** into the peritoneal cavity. - Diagnosis is typically confirmed by high drainage fluid bilirubin or HIDA scan, and **free air under the diaphragm is characteristically absent**. - The presence of pneumoperitoneum rules this out as the primary diagnosis. *Normal post-laparoscopic pneumoperitoneum* - Residual CO₂ from laparoscopic insufflation can persist for 24-48 hours post-operatively, but it is typically **asymptomatic** and resolves spontaneously. - The presence of **acute peritonitis with guarding and rigidity** 3 days post-surgery indicates a surgical emergency, not benign residual gas. - The clinical picture of sepsis and acute abdomen distinguishes this from normal postoperative pneumoperitoneum. *Retained gallstone causing obstruction* - A retained stone in the common bile duct typically causes symptoms of **biliary colic**, **obstructive jaundice**, or **cholangitis** (Charcot's triad: fever, jaundice, right upper quadrant pain). - Although it can cause pain, a retained stone does not cause acute generalized peritonitis with **free air** under the diaphragm, as it does not breach the integrity of hollow viscera.

Question 1

A patient with cholangitis underwent surgical intervention. The investigation shown in the post-operative period on the 10th day is:

Accepted Answer

T-tube cholangiogram

Answer

ERCP

Answer

MRCP

Answer

PTC

Question 2

Which of the following statements about cholangiocarcinoma is false?

Accepted Answer

Positron emission tomography-computed tomography (PET-CT) is used for staging.

Answer

Magnetic resonance cholangiopancreatography (MRCP) is a key investigation.

Answer

Contrast-enhanced computed tomography (CECT) is used for diagnosis.

Answer

Choledochal cyst is a recognized risk factor.

Question 3

Which of the following statements about gall stones is true?

Accepted Answer

There is an increased incidence of stones in diabetics

Answer

Are about twice as common in men as in women

Answer

About 80-90% of gall stones are radio-opaque

Answer

Are usually more than 50 mm in diameter

Question 4

Which of the following is FALSE regarding hepatic adenoma?

Accepted Answer

It is more common in older females.

Answer

It is a benign lesion.

Answer

It is associated with oral contraceptive pill (OCP) use.

Answer

It is typically cold on isotope scan.

Question 5

Which of the following clinical situations is associated with an increase in predominantly conjugated ("direct") bilirubin?

Accepted Answer

Pancreatic head tumor

Answer

Physiologic jaundice of the neonate

Answer

Kernicterus following Rhesus incompatibility

Answer

Gilbert's Syndrome

Question 6

What is the most common complication after ERCP?

Accepted Answer

Acute Pancreatitis

Answer

Acute cholangitis

Answer

Acute cholecystitis

Answer

Duodenal perforation

Question 7

A 30-year-old female presented with pain in the right upper quadrant of the abdomen after 4 days of cholecystectomy. On USG, it showed a significant collection in RUQ. What will you do further?

Accepted Answer

USG guided aspiration of content

Answer

Re-explore laparoscopically

Answer

MRCP

Answer

Higher antibiotics

Question 8

A 46-year-old male had a tumor in his left lobe of liver, so left sided hemi hepatectomy was planned. Which of the following segments of the liver will be resected in this procedure?

Accepted Answer

2, 3 & 4

Answer

1, 2 & 3

Answer

5, 6, 7 & 8

Answer

2, 3, 4 & 5

Question 9

Which of the following is the classical triad of acute cholangitis?

Accepted Answer

Pain, jaundice, fever

Answer

Pain, $\uparrow$ WBC, $\uparrow$ Bilirubin

Answer

Fever, jaundice, $\uparrow$ WBC

Answer

Pain, jaundice, shock

Question 10

A 55-year-old diabetic male develops sudden-onset severe abdominal pain 3 days after an uncomplicated laparoscopic cholecystectomy. Examination reveals peritonitis with guarding and rigidity. Abdominal X-ray shows free air under the diaphragm. What is the most likely diagnosis?

Accepted Answer

Duodenal perforation

Answer

Normal post-laparoscopic pneumoperitoneum

Answer

Retained gallstone causing obstruction

Answer

Bile duct injury with bile peritonitis

Hepatobiliary Surgery — MCQs

Hepatobiliary Surgery — MCQs

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