Pancreatic Surgery — MCQs

A 53-year-old male with a history of heavy alcoholism presents with a 12-hour history of sharp central abdominal pain and vomiting. He prefers to sit up rather than lie flat, as the pain increases when lying down. On examination, he has mild jaundice, a temperature of 38.3°C, a pulse of 132/min, and a blood pressure of 118/82 mm Hg. There is periumbilical discoloration and maximal tenderness in the epigastrium. What is the most likely diagnosis?

Q93Medium

All of the following are true about gastrinoma except?

Q94Easy

All of the following statements are true for insulinoma except?

Q95Medium

Which of the following is NOT a serious complication of a pancreatic pseudocyst?

Q96Medium

A 42-year-old man presents with bleeding from esophageal varices. Investigations reveal occlusion of the portal vein without evidence of liver cirrhosis. Which test is most likely to reveal an underlying predisposing factor for this condition?

Q97Medium

All of the following can be used to predict severe acute pancreatitis EXCEPT:

Q98Easy

Which structure is preserved when the pylorus prevents pancreaticoduodenectomy?

Q99Easy

All of the following can cause acute pancreatitis except?

Q100Easy

In VIPoma, which of the following is not seen?

Pancreatic Surgery Indian Medical PG Practice Questions and MCQs

Question 91: Areas of peripancreatic fluid seen within the first 4 weeks after the onset of interstitial oedematous pancreatitis is called:

A. Acute Peripancreatic fluid collection (Correct Answer)
B. Pseudocyst
C. WOPN
D. Abscess

Explanation: This question tests your knowledge of the **Revised Atlanta Classification (2012)**, which is the gold standard for defining complications of acute pancreatitis. ### **1. Why Option A is Correct** The classification of pancreatic collections depends on two factors: **Type of pancreatitis** (Oedematous vs. Necrotizing) and **Duration** (Before vs. After 4 weeks). * **Acute Peripancreatic Fluid Collection (APFC):** Occurs in interstitial oedematous pancreatitis within the first 4 weeks. It lacks a defined wall and is confined by normal fascial planes. Most APFCs resolve spontaneously without intervention. ### **2. Why Other Options are Incorrect** * **B. Pseudocyst:** This is a collection of pancreatic juice enclosed by a wall of granulation tissue. It only occurs **after 4 weeks** of interstitial oedematous pancreatitis. * **C. WOPN (Walled-off Pancreatic Necrosis):** This occurs in **necrotizing pancreatitis** (not oedematous) and takes at least **4 weeks** to develop a mature wall. * **D. Abscess:** This is an outdated term. The current terminology uses "Infected Necrosis" or "Infected Pseudocyst." An abscess implies a localized collection of pus, which usually occurs late in the disease course. ### **3. High-Yield Clinical Pearls for NEET-PG** * **The 4-Week Rule:** 4 weeks is the magic number for "walling off" to occur. * **Oedematous Pancreatitis:** Leads to APFC (<4 weeks) $\rightarrow$ Pseudocyst (>4 weeks). * **Necrotizing Pancreatitis:** Leads to Acute Necrotic Collection (ANC, <4 weeks) $\rightarrow$ Walled-off Pancreatic Necrosis (WOPN, >4 weeks). * **Management:** Most APFCs and asymptomatic pseudocysts are managed conservatively. Intervention (Drainage/Necrosectomy) is generally delayed until the collection is "walled off" (after 4 weeks).

Question 92: A 53-year-old male with a history of heavy alcoholism presents with a 12-hour history of sharp central abdominal pain and vomiting. He prefers to sit up rather than lie flat, as the pain increases when lying down. On examination, he has mild jaundice, a temperature of 38.3°C, a pulse of 132/min, and a blood pressure of 118/82 mm Hg. There is periumbilical discoloration and maximal tenderness in the epigastrium. What is the most likely diagnosis?

A. Acute pancreatitis (Correct Answer)
B. Pyelonephritis
C. Acute viral hepatitis
D. Perforated duodenal ulcer

Explanation: **Explanation:** The clinical presentation is classic for **Acute Pancreatitis**. The patient’s history of heavy alcohol consumption is a major risk factor. The "sharp central abdominal pain" that is relieved by sitting up or leaning forward (the **"tripod position"**) is a hallmark sign, as lying flat allows the inflamed pancreas to compress against the retroperitoneum. The presence of **periumbilical discoloration (Cullen’s sign)** indicates retroperitoneal hemorrhage tracking along the falciform ligament, a sign of necrotizing or severe pancreatitis. Tachycardia and fever further suggest a systemic inflammatory response. **Why the other options are incorrect:** * **Pyelonephritis:** Typically presents with flank pain (loin to groin), high-grade fever with rigors, and costovertebral angle tenderness, rather than periumbilical bruising or relief upon sitting forward. * **Acute Viral Hepatitis:** While it causes jaundice and epigastric/RUQ discomfort, it does not present with acute severe "sharp" pain, periumbilical ecchymosis, or the specific postural relief seen here. * **Perforated Duodenal Ulcer:** This presents with sudden-onset "board-like" abdominal rigidity. While it causes epigastric pain, the patient would typically lie perfectly still (as any movement exacerbates peritonitis), rather than shifting to a sitting position. **NEET-PG High-Yield Pearls:** * **Cullen’s Sign:** Periumbilical bruising (seen here). * **Grey Turner’s Sign:** Flank bruising (indicates retroperitoneal hemorrhage). * **Fox’s Sign:** Bruising over the inguinal ligament. * **Diagnosis:** Requires 2 of 3: (1) Characteristic abdominal pain, (2) Serum amylase/lipase >3x normal, (3) Characteristic findings on CT/MRI. * **Most common cause:** Gallstones (Global/Overall), Alcohol (in males).

Question 93: All of the following are true about gastrinoma except?

A. Mostly found in the triangle of Passaro
B. Basal acid output >15 mEq/hour is diagnostic
C. Most common site is the pancreas (Correct Answer)
D. Lymphadenectomy is not required as there is no improvement in survival

Explanation: ### Explanation **Gastrinoma (Zollinger-Ellison Syndrome)** is a neuroendocrine tumor characterized by hypergastrinemia and refractory peptic ulcer disease. **Why Option C is the Correct Answer (The False Statement):** Historically, gastrinomas were thought to be primarily pancreatic. However, current evidence confirms that the **most common site for gastrinomas is the duodenum** (specifically the first and second parts), accounting for 60–90% of cases. Pancreatic gastrinomas are less common and are often larger and more likely to be malignant compared to duodenal ones. **Analysis of Other Options:** * **Option A:** The **Gastrinoma Triangle (Triangle of Passaro)** is defined by the junction of the cystic and common bile duct, the junction of the 2nd and 3rd parts of the duodenum, and the neck/body of the pancreas. Over 90% of gastrinomas are found here. * **Option B:** A **Basal Acid Output (BAO) >15 mEq/hour** (or >5 mEq/hour in patients with previous gastric surgery) is a classic diagnostic criterion for ZES. * **Option D:** While surgical resection is the mainstay for sporadic cases, extensive **lymphadenectomy** in gastrinoma surgery is controversial. Current surgical consensus suggests that while lymph nodes are often involved, aggressive lymphadenectomy does not significantly improve long-term survival compared to simple excision of the primary tumor. **NEET-PG High-Yield Pearls:** * **Most common location:** Duodenum (specifically the "Gastrinoma Triangle"). * **Association:** 25% are associated with **MEN-1 syndrome** (these are often multiple and harder to cure). * **Best Screening Test:** Fasting Serum Gastrin (>1000 pg/mL is diagnostic). * **Best Provocative Test:** Secretin Stimulation Test (positive if gastrin rises >200 pg/mL). * **Localization:** Somatostatin Receptor Scintigraphy (Octreoscan) or Endoscopic Ultrasound (EUS).

Question 94: All of the following statements are true for insulinoma except?

A. These are the most common pancreatic endocrine neoplasms.
B. Most insulinomas are multiple. (Correct Answer)
C. These are benign.
D. Deposition of amyloid is characteristic.

Explanation: **Explanation:** Insulinomas are the most common functional neuroendocrine tumors (NETs) of the pancreas. Understanding their clinical behavior is crucial for NEET-PG. **1. Why Option B is the Correct Answer (The False Statement):** The vast majority of insulinomas (**90%**) are **solitary** (single) lesions. Multiple insulinomas are rare (approx. 10%) and are strongly associated with **MEN-1 syndrome** (Multiple Endocrine Neoplasia Type 1). Therefore, the statement that "most are multiple" is incorrect. **2. Analysis of Other Options:** * **Option A:** Insulinomas are indeed the **most common** functional pancreatic endocrine neoplasms, followed by gastrinomas. * **Option C:** Approximately **90% of insulinomas are benign**. Only about 5-10% show malignant behavior (defined by local invasion or distant metastasis). * **Option D:** Histologically, insulinomas often show **amyloid deposition** (derived from islet amyloid polypeptide/amylin), which is a characteristic pathological feature. **Clinical Pearls for NEET-PG:** * **Whipple’s Triad:** Essential for diagnosis—(1) Symptoms of hypoglycemia during fasting, (2) Low blood glucose (<50 mg/dL), (3) Relief of symptoms after glucose administration. * **Rule of 90s:** 90% are solitary, 90% are benign, 90% are <2 cm in size, and 90% are intrapancreatic. * **Localization:** Most are distributed equally across the head, body, and tail of the pancreas. **Endoscopic Ultrasound (EUS)** is the most sensitive preoperative localization study. * **Treatment:** Surgical enucleation is the treatment of choice for small, benign lesions.

Question 95: Which of the following is NOT a serious complication of a pancreatic pseudocyst?

A. Intracystic hemorrhage
B. Secondary infection
C. Calcification in the cyst wall (Correct Answer)
D. Rupture of the cyst

Explanation: **Explanation:** A pancreatic pseudocyst is a collection of fluid rich in pancreatic enzymes, surrounded by a wall of fibrous or granulation tissue (lacking an epithelial lining). While most pseudocysts are managed conservatively, certain complications are life-threatening and necessitate urgent intervention. **Why Option C is the correct answer:** **Calcification in the cyst wall** is generally a sign of chronicity and stability. Unlike calcifications within the pancreatic parenchyma (a hallmark of chronic pancreatitis), calcification of the pseudocyst wall itself is rare and typically asymptomatic. It does not pose an acute threat to the patient’s life, making it the "least serious" among the options provided. **Analysis of Incorrect Options (Serious Complications):** * **Intracystic Hemorrhage (A):** This is a surgical emergency. It usually occurs due to the erosion of the cyst into a major peripancreatic vessel (e.g., the splenic artery), leading to a **pseudoaneurysm**. Rupture can cause sudden shock. * **Secondary Infection (B):** If a pseudocyst becomes infected, it transforms into a **pancreatic abscess**. This leads to sepsis, high-grade fever, and systemic inflammatory response syndrome (SIRS), requiring drainage and antibiotics. * **Rupture of the Cyst (D):** Sudden rupture into the peritoneal cavity causes **generalized peritonitis** and shock. If it ruptures into a hollow viscus (like the stomach or colon), it can cause massive GI bleeding or a fistula. **NEET-PG High-Yield Pearls:** * **Definition:** A pseudocyst takes **4–6 weeks** to form after an episode of acute pancreatitis. * **Location:** Most commonly found in the **lesser sac**. * **Management:** The "Rule of 6" (size >6cm or persisting >6 weeks) is no longer the absolute standard; intervention is now primarily based on **symptoms** or **complications**. * **Procedure of Choice:** **Surgical Cystogastrostomy** (or endoscopic drainage) is preferred once the wall has matured (fibrosed).

Question 96: A 42-year-old man presents with bleeding from esophageal varices. Investigations reveal occlusion of the portal vein without evidence of liver cirrhosis. Which test is most likely to reveal an underlying predisposing factor for this condition?

A. Hepatitis screening
B. Iso-amylase
C. Intravenous pyelogram to exclude hydronephrosis
D. Coagulation tests to include antithrombin III (Correct Answer)

Explanation: **Explanation:** The clinical presentation describes **Extrahepatic Portal Vein Obstruction (EHPVO)**, a condition characterized by portal hypertension (manifesting as esophageal varices) in the absence of intrinsic liver disease (cirrhosis). **1. Why Option D is Correct:** In adults without cirrhosis, the most common cause of non-cirrhotic portal vein thrombosis (PVT) is an underlying **hypercoagulable state (thrombophilia)**. Deficiencies in natural anticoagulants—specifically **Antithrombin III, Protein C, and Protein S**—or mutations like Factor V Leiden are frequently implicated. Testing for these factors is essential to identify the predisposing cause and prevent further thrombotic events. **2. Why Other Options are Incorrect:** * **A. Hepatitis screening:** This is used to diagnose viral cirrhosis. The question explicitly states there is "no evidence of liver cirrhosis," making a primary hepatic cause unlikely. * **B. Iso-amylase:** While chronic pancreatitis can cause *splenic* vein thrombosis (leading to isolated gastric varices), it is not a standard investigation for generalized portal vein occlusion unless pancreatitis is clinically suspected. * **C. Intravenous pyelogram (IVP):** This is used to visualize the urinary tract. While some congenital anomalies can coexist with vascular malformations, it has no diagnostic value in identifying the cause of portal vein thrombosis. **Clinical Pearls for NEET-PG:** * **EHPVO vs. Cirrhosis:** In EHPVO, Liver Function Tests (LFTs) are typically normal, and there is no jaundice or hepatic encephalopathy. * **Cavernous Transformation:** On ultrasound, a "mesh" of collateral vessels replacing the portal vein is a hallmark of chronic PVT (Portal Cavernoma). * **Management:** Acute variceal bleeding is managed with endoscopic band ligation (EBL). For long-term management in EHPVO, the **Proximal Splenorenal Shunt (PSRS)** is the surgical procedure of choice.

Question 97: All of the following can be used to predict severe acute pancreatitis EXCEPT:

A. Glasgow score 3
B. APACHE II score 9
C. CT severity score 6
D. C-reactive protein < 100 mg/L (Correct Answer)

Explanation: To predict the severity of acute pancreatitis, clinicians use various scoring systems and biochemical markers. Severe acute pancreatitis is defined by persistent organ failure or local complications (necrosis, abscess). ### **Explanation of the Correct Answer** **D. C-reactive protein < 100 mg/L** is the correct answer because it indicates a **mild** course. CRP is an acute-phase reactant synthesized by the liver. In acute pancreatitis, a CRP level **> 150 mg/L** at 48 hours is a highly sensitive predictor of severe pancreatitis and pancreatic necrosis. A value below 100 mg/L suggests the absence of significant systemic inflammation. ### **Analysis of Incorrect Options** * **A. Glasgow score 3:** The Glasgow (Imrie) score uses 8 parameters. A score of **≥ 3** within the first 48 hours indicates severe pancreatitis. * **B. APACHE II score 9:** The APACHE II score is a comprehensive physiological assessment. A score of **≥ 8** is the traditional cutoff used to predict severe disease and increased mortality. * **C. CT severity score 6:** The Balthazar CT Severity Index (CTSI) combines peripancreatic inflammation and the degree of necrosis. A score of **7–10** indicates severe disease, but any score **≥ 6** is clinically significant and associated with a higher risk of complications. ### **High-Yield Clinical Pearls for NEET-PG** * **Ranson’s Criteria:** Evaluated at admission and 48 hours. A score **≥ 3** predicts severity. * **BISAP Score:** (BUN, Impaired mental status, SIRS, Age > 60, Pleural effusion). A score **≥ 3** is a strong predictor of mortality. * **Gold Standard Imaging:** Contrast-Enhanced CT (CECT) is the best tool to assess necrosis, ideally performed **72–96 hours** after symptom onset. * **Early Marker:** Urinary Trypsinogen Activation Peptide (TAP) is an early research marker for severity.

Question 98: Which structure is preserved when the pylorus prevents pancreaticoduodenectomy?

A. Distal stomach (Correct Answer)
B. Gall bladder
C. Bile duct
D. Head of pancreas

Explanation: The question refers to the **Pylorus-Preserving Pancreaticoduodenectomy (PPPD)**, also known as the **Traverso-Longmire procedure**. This is a modification of the standard Whipple’s procedure. ### 1. Why the Correct Answer is Right In a standard Whipple’s procedure (Classical Pancreaticoduodenectomy), the distal 30–40% of the stomach (antrum) is resected. In a **PPPD**, the dissection is carried out distal to the pylorus. The **distal stomach, the pylorus, and the first 2–3 cm of the duodenum are preserved**. * **Medical Concept:** The preservation of the pylorus maintains the gastric reservoir function and regulates gastric emptying, theoretically reducing the incidence of "dumping syndrome" and marginal ulceration compared to the classical Whipple’s. ### 2. Why Incorrect Options are Wrong * **B. Gallbladder:** This is routinely removed (cholecystectomy) in both standard Whipple’s and PPPD to prevent future cholecystitis due to altered biliary anatomy. * **C. Bile Duct:** The distal common bile duct is always resected as it passes through the head of the pancreas; a hepaticojejunostomy is then performed for reconstruction. * **D. Head of Pancreas:** This is the primary pathology site being treated; its removal is the core objective of the surgery. ### 3. High-Yield Facts for NEET-PG * **Indication for PPPD:** Usually performed for benign or low-grade malignant tumors of the pancreatic head or periampullary region. * **Contraindication:** PPPD is contraindicated if there is evidence of malignancy involving the pyloric lymph nodes or direct tumor infiltration into the duodenum/stomach. * **Complication:** The most common short-term complication specific to PPPD is **Delayed Gastric Emptying (DGE)**, which occurs more frequently than in the classical Whipple’s. * **Blood Supply:** In PPPD, the blood supply to the preserved pylorus and proximal duodenum is maintained via the **right gastric artery** and the **right gastroepiploic artery**.

Question 99: All of the following can cause acute pancreatitis except?

A. Gall stones
B. Alcohol
C. Trauma
D. Hepatitis (Correct Answer)

Explanation: **Explanation:** Acute pancreatitis is an inflammatory condition of the pancreas characterized by the premature activation of digestive enzymes within the acinar cells. **Why Hepatitis is the Correct Answer:** Hepatitis (specifically viral hepatitis) primarily affects the hepatic parenchyma. While systemic viral infections like **Mumps, Coxsackie B, and Cytomegalovirus (CMV)** are well-known causes of acute pancreatitis, standard viral hepatitis (A, B, C, E) does not typically cause pancreatitis. Therefore, it is the least likely cause among the given options. **Why the other options are incorrect:** * **Gallstones (Option A):** The **most common cause** of acute pancreatitis worldwide (approx. 40%). Obstruction of the Ampulla of Vater by a migrating stone leads to bile reflux into the pancreatic duct and increased ductal pressure. * **Alcohol (Option B):** The **second most common cause**. Chronic alcohol consumption leads to the secretion of protein-rich pancreatic fluid, which forms "protein plugs" that obstruct small ducts, alongside direct toxic effects on acinar cells. * **Trauma (Option C):** Blunt abdominal trauma (e.g., steering wheel injury) can compress the pancreas against the vertebral column, leading to ductal disruption and enzyme leakage. **NEET-PG High-Yield Pearls:** * **Mnemonic for Causes (I GET SMASHED):** **I**diopathic, **G**allstones, **E**thanol, **T**rauma, **S**teroids, **M**umps, **A**utoimmune, **S**corpion sting, **H**ypertriglyceridemia/Hypercalcemia, **E**RCP, **D**rugs (e.g., Azathioprine, Thiazides). * **Most common cause in India:** Gallstones (followed by Alcohol). * **Post-ERCP Pancreatitis:** The most common complication following an ERCP procedure. * **Scorpion Sting:** Specifically the *Tityus trinitatis* species is associated with pancreatitis.

Question 100: In VIPoma, which of the following is not seen?

A. Watery diarrhea
B. Hypokalemia
C. Hypercalcemia & hyperglycemia
D. Increased acid secretion (Correct Answer)

Explanation: **Explanation:** **VIPoma** (also known as Verner-Morrison syndrome or WDHA syndrome) is a rare neuroendocrine tumor, usually located in the pancreas, that secretes excessive amounts of Vasoactive Intestinal Peptide (VIP). **Why "Increased acid secretion" is the correct answer:** VIP is a potent inhibitor of gastric acid secretion. It acts as an "anti-gastrin" by inhibiting parietal cell activity. Therefore, patients with VIPoma typically present with **hypochlorhydria or achlorhydria** (low or absent stomach acid), not increased acid secretion. Increased acid secretion is characteristic of Zollinger-Ellison Syndrome (Gastrinoma). **Analysis of incorrect options:** * **Watery diarrhea (A):** VIP stimulates intestinal secretion of water and electrolytes and inhibits absorption, leading to massive, tea-colored secretory diarrhea (often >3L/day) that persists even during fasting. * **Hypokalemia (B):** The profound diarrhea leads to significant fecal loss of potassium, resulting in severe muscle weakness and cardiac arrhythmias. * **Hypercalcemia & Hyperglycemia (C):** VIP promotes glycogenolysis in the liver, leading to hyperglycemia. Hypercalcemia occurs in about 25-50% of cases due to the direct effect of VIP on bone resorption or co-existing MEN-1 syndrome. **Clinical Pearls for NEET-PG:** * **WDHA Syndrome mnemonic:** **W**atery **D**iarrhea, **H**ypokalemia, **A**chlorhydria. * **Diagnosis:** Elevated fasting plasma VIP levels (>200 pg/mL). * **Localization:** Most are found in the **tail of the pancreas**; 10% are extrapancreatic (especially in children, where they arise from sympathetic chains like ganglioneuromas). * **Management:** Initial stabilization requires aggressive fluid resuscitation and **Octreotide** (somatostatin analog) to control diarrhea before surgical resection.

Practice by Chapter

Pancreatic Anatomy and Physiology

Practice Questions

Acute Pancreatitis

Practice Questions

Chronic Pancreatitis

Practice Questions

Pancreatic Pseudocysts

Practice Questions

Pancreatic Adenocarcinoma

Practice Questions

Cystic Neoplasms of Pancreas

Practice Questions

Neuroendocrine Tumors of Pancreas

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Pancreatic Trauma

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Pancreatectomy Techniques

Practice Questions

Whipple Procedure

Practice Questions

Pancreatic Anastomosis

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Complications of Pancreatic Surgery

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