Pancreatic Surgery — MCQs

Pancreatic Surgery Indian Medical PG Practice Questions and MCQs

Question 61: A 23-year-old male college student has a history of liver cirrhosis due to an abnormality in copper metabolism. He should be treated with which of the following?

A. Penicillamine as soon as the diagnosis is established (Correct Answer)
B. Penicillamine after variceal bleeding has occurred
C. A portocaval shunt
D. Sclerosis of the esophageal varices as a prophylactic measure

Explanation: ### Explanation **Correct Option: A. Penicillamine as soon as the diagnosis is established** The clinical vignette describes a young patient with liver cirrhosis due to an abnormality in copper metabolism, which is the hallmark of **Wilson’s Disease** (Hepatolenticular degeneration). Wilson’s disease is an autosomal recessive disorder caused by a mutation in the *ATP7B* gene, leading to impaired biliary copper excretion and systemic copper accumulation. The primary goal of management is to prevent irreversible organ damage (cirrhosis, neurological deterioration, and Kayser-Fleischer rings). **Chelation therapy with D-Penicillamine** is the first-line treatment and must be initiated **immediately upon diagnosis**, even in asymptomatic patients. Early treatment can halt disease progression and, in some cases, reverse hepatic and neurological symptoms. **Why other options are incorrect:** * **Option B:** Waiting for variceal bleeding is dangerous. Treatment aims to prevent the complications of portal hypertension, not wait for them to occur. * **Option C:** A portocaval shunt is a surgical intervention for refractory portal hypertension or variceal bleeding. It does not treat the underlying copper overload and is not a primary treatment for Wilson’s disease. * **Option D:** Prophylactic sclerosis (or banding) is generally reserved for high-risk varices in established cirrhosis but does not address the metabolic cause of the disease. ### NEET-PG High-Yield Pearls: * **Diagnosis:** Low serum ceruloplasmin (<20 mg/dL), increased 24-hour urinary copper excretion (>100 μg), and the presence of KF rings on slit-lamp exam. * **Gold Standard Diagnosis:** Liver biopsy showing increased copper content (>250 μg/g dry weight). * **Treatment:** D-Penicillamine (requires Vitamin B6 supplementation). Alternatives include Trientine (better tolerated) and Zinc (blocks intestinal copper absorption). * **Liver Transplant:** Indicated for fulminant hepatic failure or decompensated cirrhosis unresponsive to chelation.

Question 62: What is the treatment for a pseudopancreatic cyst?

A. Percutaneous drainage
B. Pancreatectomy
C. Internal drainage (surgical)
D. All of the above (Correct Answer)

Explanation: A **Pseudopancreatic cyst** is a collection of pancreatic fluid surrounded by a wall of fibrous or granulation tissue (lacking an epithelial lining), typically occurring 4–6 weeks after an episode of acute pancreatitis. ### **Explanation of the Correct Answer** The management of a pseudocyst is highly individualized based on the cyst's size, location, duration, and the presence of complications. While many resolve spontaneously, symptomatic or enlarging cysts require intervention: 1. **Internal Drainage (Surgical/Endoscopic):** This is the **gold standard** for mature cysts (wall >6 weeks old). Options include Cystogastrostomy, Cystoduodenostomy, or Roux-en-Y Cystojejunostomy. 2. **Percutaneous Drainage:** Indicated for **infected pseudocysts** or in patients who are too hemodynamically unstable for surgery. However, it carries a risk of pancreaticocutaneous fistula. 3. **Pancreatectomy:** Reserved for cysts located in the **tail of the pancreas** or those associated with chronic pancreatitis where the pancreatic parenchyma is extensively diseased. Since all three modalities are recognized treatment options depending on the clinical scenario, **Option D (All of the above)** is correct. ### **Clinical Pearls for NEET-PG** * **Wait and Watch:** Most pseudocysts <6 cm and <6 weeks old resolve spontaneously. * **The "6-week rule":** Traditionally, surgeons wait 6 weeks for the cyst wall to "mature" (become firm enough to hold sutures) before attempting internal drainage. * **Most common site:** The **lesser sac** (behind the stomach). * **Most common complication:** Infection; however, **hemorrhage** (due to erosion into the splenic artery causing a pseudoaneurysm) is the most lethal. * **Investigation of choice:** Contrast-Enhanced CT (CECT) scan.

Question 63: Which of the following is the most rare complication of acute pancreatitis?

A. Hypotension
B. Jaundice
C. Retinopathy (Correct Answer)
D. Hypertriglyceridemia

Explanation: **Explanation:** The correct answer is **Retinopathy (Purtscher’s Retinopathy)**. While acute pancreatitis presents with a wide array of systemic complications, retinopathy is considered an extremely rare manifestation. **1. Why Retinopathy is the correct answer:** Purtscher’s Retinopathy in acute pancreatitis is caused by the activation of the complement cascade and the formation of microemboli (leukocyte aggregates, fibrin, or fat) that occlude the retinal arterioles. Clinically, it presents as sudden visual loss with characteristic "cotton wool spots" and hemorrhages on fundoscopy. Its incidence is estimated at **<1%**, making it significantly rarer than the other listed complications. **2. Why other options are incorrect:** * **Hypotension:** Very common. It occurs due to "third-spacing" of fluids, systemic inflammatory response syndrome (SIRS), and kinin release leading to vasodilation. * **Jaundice:** Common (approx. 20-30%). It usually occurs due to compression of the intrapancreatic portion of the common bile duct by an edematous pancreatic head or due to an underlying gallstone (biliary pancreatitis). * **Hypertriglyceridemia:** Both a cause and a common metabolic consequence of acute pancreatitis. It is frequently seen in alcohol-induced cases or patients with underlying Type I, IV, or V hyperlipoproteinemia. **High-Yield Clinical Pearls for NEET-PG:** * **Purtscher’s Retinopathy** is also associated with severe head trauma and chest compression. * **Most common cause of death** in early pancreatitis (<1 week) is **SIRS/Multi-organ failure**; in late stages (>2 weeks), it is **Sepsis/Infected necrosis**. * **Grey Turner’s sign** (flank ecchymosis) and **Cullen’s sign** (periumbilical ecchymosis) indicate retroperitoneal hemorrhage and signify severe necrotizing pancreatitis.

Question 64: Which of the following is NOT a cause of acute pancreatitis?

A. Gallstones
B. Alcohol
C. Starvation (Correct Answer)
D. Hypercalcemia

Explanation: **Explanation:** Acute pancreatitis is an inflammatory condition of the pancreas characterized by the premature activation of digestive enzymes (trypsinogen to trypsin) within the acinar cells, leading to autodigestion. **Why Starvation is the Correct Answer:** Starvation is **not** a cause of acute pancreatitis. In fact, "bowel rest" (NPO - *Nil Per Os*) is a cornerstone of management for acute pancreatitis to decrease pancreatic stimulation. Interestingly, it is **Hypertriglyceridemia** (specifically levels >1000 mg/dL) and **Re-feeding syndrome** (rapid reintroduction of food after starvation) that are associated with pancreatic injury, but starvation itself is protective against enzyme secretion. **Analysis of Incorrect Options:** * **Gallstones (Option A):** The most common cause worldwide (approx. 40%). Obstruction of the ampulla of Vater leads to increased pancreatic ductal pressure and bile reflux, triggering enzyme activation. * **Alcohol (Option B):** The second most common cause. Alcohol exerts a direct toxic effect on acinar cells and increases the protein content of pancreatic secretions, leading to "protein plugs" that obstruct small ducts. * **Hypercalcemia (Option C):** High calcium levels (e.g., due to hyperparathyroidism) act as a cofactor for the activation of trypsinogen to trypsin and can cause the deposition of calcium in the pancreatic duct. **High-Yield Clinical Pearls for NEET-PG:** * **Mnemonic for Causes:** **I GET SMASHED** (Idiopathic, Gallstones, Ethanol, Tumors, Scorpion sting, Microbiological (Mumps), Autoimmune, Surgery/ERCP, Hyperlipidemia/Hypercalcemia, Emboli/Ischemia, Drugs). * **Drug-induced:** Azathioprine, Sulfonamides, Valproate, and Thiazides are common culprits. * **Post-ERCP Pancreatitis:** The most common complication of ERCP (approx. 5%). * **Diagnosis:** Requires 2 out of 3: (1) Acute epigastric pain radiating to the back, (2) Serum Amylase/Lipase >3x normal, (3) Characteristic findings on CECT.

Question 65: What is the maximum risk of carcinoma of the pancreas seen in which of these conditions?

A. Hereditary atypical multiple mole melanoma syndrome
B. Hereditary pancreatitis
C. Peutz-Jeghers syndrome (Correct Answer)
D. Familial adenomatous polyposis

Explanation: ### Explanation The risk of pancreatic adenocarcinoma is significantly elevated in several hereditary syndromes. To answer this question correctly, one must compare the **Relative Risk (RR)** or **Cumulative Lifetime Risk** associated with each condition. **1. Why Peutz-Jeghers Syndrome (PJS) is Correct:** PJS, caused by a germline mutation in the **STK11 (LKB1)** gene, carries the highest cumulative lifetime risk for pancreatic cancer among the options provided. Patients with PJS have a **132-fold increased relative risk**, with a cumulative lifetime risk of developing pancreatic cancer estimated at **36% to 52%**. This makes it the strongest syndromic risk factor listed. **2. Analysis of Incorrect Options:** * **Hereditary Pancreatitis (HP):** Caused primarily by **PRSS1** mutations. While it carries a massive lifetime risk (approx. 40%), the relative risk (approx. 50-80 fold) is statistically lower than that of PJS in most surgical literature. * **Hereditary Atypical Multiple Mole Melanoma (FAMMM):** Caused by **CDKN2A** mutations. The lifetime risk of pancreatic cancer is roughly **10-17%**, which is significant but lower than PJS. * **Familial Adenomatous Polyposis (FAP):** Caused by **APC** mutations. While FAP increases the risk of periampullary and duodenal cancers, the specific risk for pancreatic adenocarcinoma is relatively low (less than 5%). **Clinical Pearls for NEET-PG:** * **Highest Relative Risk:** Peutz-Jeghers Syndrome (>100x). * **Most Common Genetic Mutation in Sporadic Pancreatic Cancer:** **K-ras** (90% of cases), followed by CDKN2A, TP53, and SMAD4. * **Screening:** High-risk individuals (like those with PJS) should undergo screening starting at age 30-35 with Endoscopic Ultrasound (EUS) or MRCP. * **Trousseau Sign:** Migratory thrombophlebitis associated with pancreatic visceral malignancy.

Question 66: Pancreaticoduodenectomy is the treatment of choice for which of the following conditions?

A. Duodenal carcinoma
B. Pancreatic carcinoma (Correct Answer)
C. Gallbladder carcinoma
D. Gastric carcinoma

Explanation: **Explanation:** **Pancreaticoduodenectomy (Whipple’s Procedure)** is the standard surgical treatment for resectable tumors located in the **head of the pancreas** and the **periampullary region**. 1. **Why Pancreatic Carcinoma is Correct:** The head of the pancreas shares a common blood supply (the pancreaticoduodenal arcade) with the duodenum and the distal common bile duct. Due to this intimate anatomical and vascular relationship, a localized malignancy in the pancreatic head requires the en-bloc resection of the pancreatic head, duodenum, gallbladder, distal CBD, and sometimes the gastric antrum to ensure oncological clearance. 2. **Why Other Options are Incorrect:** * **Duodenal Carcinoma:** While Whipple’s can be used for duodenal tumors (especially those near the ampulla), it is most classically associated with pancreatic head cancer in the context of "treatment of choice" for major pancreatic surgery. * **Gallbladder Carcinoma:** The standard treatment is **Radical Cholecystectomy** (cholecystectomy + wedge resection of the liver bed + lymphadenectomy). Whipple’s is only indicated if there is direct invasion into the duodenum or pancreas. * **Gastric Carcinoma:** The treatment of choice is **Subtotal or Total Gastrectomy** with D2 lymph node dissection. **High-Yield Clinical Pearls for NEET-PG:** * **Periampullary Tumors:** These include tumors of the pancreatic head, ampulla of Vater, distal CBD, and the second part of the duodenum. All are treated with Whipple’s. * **Artery of Concern:** During surgery, the **replaced right hepatic artery** (arising from the SMA) must be identified to avoid accidental ligation. * **Most Common Complication:** **Delayed gastric emptying** is the most frequent complication, while **Pancreatic Fistula** is the most dreaded/serious complication. * **Reconstruction Sequence:** The standard order of anastomosis is Pancreaticojejunostomy (most proximal), followed by Hepaticojejunostomy, and finally Gastrojejunostomy.

Question 67: All are features of a pseudopancreatic cyst except?

A. Follows acute pancreatitis
B. Lined by false epithelium
C. May regress spontaneously
D. Treatment of choice is percutaneous aspiration (Correct Answer)

Explanation: **Explanation:** A **Pseudopancreatic cyst** is a localized collection of fluid, rich in amylase and other pancreatic enzymes, typically occurring as a complication of acute or chronic pancreatitis or pancreatic trauma. **Why Option D is the Correct Answer (The "Except"):** Percutaneous aspiration is **not** the treatment of choice. It is associated with a high failure rate and a high risk of recurrence and secondary infection. The definitive management depends on the symptoms and maturity of the cyst wall. For symptomatic or enlarging pseudocysts, the gold standard is **internal drainage** (e.g., Cystogastrostomy, Cystoduodenostomy, or Roux-en-Y Cystojejunostomy), usually performed after 6 weeks to allow the cyst wall to mature. **Analysis of Other Options:** * **Option A:** True. Pseudocysts most commonly follow an episode of acute pancreatitis (occurring in about 10% of cases) or blunt abdominal trauma. * **Option B:** True. Unlike true cysts, pseudocysts lack an epithelial lining. They are lined by **granulation tissue and fibrosis**, which is why they are termed "pseudo." * **Option C:** True. Approximately 50% of pseudocysts regress spontaneously, especially those <6 cm in size and those that have been present for less than 6 weeks. **Clinical Pearls for NEET-PG:** * **Timing:** Wait **6 weeks** for the wall to mature before surgical intervention. * **Location:** Most common site is the **lesser sac**. * **Investigation of Choice:** **CECT** is the gold standard for diagnosis and monitoring. * **Most common complication:** Infection (forming a pancreatic abscess). * **Most serious complication:** Hemorrhage due to erosion into a vessel (commonly the **splenic artery**), leading to a hemosuccus pancreaticus.

Question 68: Splenectomy is often indicated in the management of which of the following conditions?

A. Hereditary spherocytosis (Correct Answer)
B. Hereditary neurofibromatosis
C. Aplastic anemia
D. Pheochromocytoma

Explanation: **Explanation:** **Hereditary Spherocytosis (HS)** is the correct answer because it is the most common indication for elective splenectomy in children and young adults. In HS, a defect in red blood cell (RBC) membrane proteins (like spectrin or ankyrin) leads to the formation of spherical, rigid cells. These spherocytes are trapped and destroyed by the splenic macrophages in the cords of Billroth. While splenectomy does not cure the underlying genetic defect, it significantly increases RBC lifespan, resolves hemolytic anemia, and reduces the risk of pigment gallstones. **Analysis of Incorrect Options:** * **Hereditary Neurofibromatosis:** This is a neurocutaneous syndrome (NF1/NF2) characterized by tumors of the nerve sheath (neurofibromas), café-au-lait spots, and Lisch nodules. It has no primary hematologic component requiring splenectomy. * **Aplastic Anemia:** This is a bone marrow failure syndrome. Treatment focuses on bone marrow transplantation or immunosuppressive therapy (ATG/Cyclosporine). Splenectomy is not indicated as the pathology is central (production failure), not peripheral destruction in the spleen. * **Pheochromocytoma:** This is a catecholamine-secreting tumor of the adrenal medulla. The management is medical stabilization (alpha/beta-blockade) followed by adrenalectomy, not splenectomy. **Clinical Pearls for NEET-PG:** * **Timing:** In HS, splenectomy is ideally delayed until after age 5–6 to reduce the risk of **OPSI (Overwhelming Post-Splenectomy Infection)**. * **Concomitant Procedure:** Always screen for gallstones via ultrasound before surgery; if present, a cholecystectomy is performed simultaneously. * **Prophylaxis:** Patients must receive vaccinations against *S. pneumoniae*, *H. influenzae*, and *N. meningitidis* at least 2 weeks prior to elective surgery. * **Post-Op Finding:** Look for **Howell-Jolly bodies** on the peripheral smear post-splenectomy.

Question 69: Which of the following is NOT used for the routine medical treatment of acute pancreatitis?

A. Ringer's Lactate
B. Normal Saline
C. Intravenous opiates
D. Gabexate mesilate (Correct Answer)

Explanation: **Explanation:** The management of acute pancreatitis (AP) focuses on aggressive fluid resuscitation, analgesia, and nutritional support. **Gabexate mesilate** is a synthetic low-molecular-weight protease inhibitor designed to inhibit trypsin and other inflammatory mediators. While theoretically sound, multiple clinical trials and meta-analyses have shown that it does not significantly improve clinical outcomes, reduce mortality, or prevent complications in routine cases of AP. Therefore, it is not recommended for routine medical treatment. **Analysis of Options:** * **Ringer’s Lactate (RL):** This is the **fluid of choice** for initial resuscitation. RL has been shown to reduce systemic inflammation (measured by CRP levels) and the incidence of Systemic Inflammatory Response Syndrome (SIRS) compared to Normal Saline. * **Normal Saline (NS):** While RL is preferred, NS is a standard isotonic crystalloid used for volume expansion in AP, especially if RL is unavailable or contraindicated (e.g., hypercalcemia). * **Intravenous Opiates:** Pain management is a cornerstone of therapy. IV opioids (e.g., Fentanyl, Hydromorphone) are the standard of care. Contrary to older teaching, Morphine is now considered safe as there is no clinical evidence that it causes significant Sphincter of Oddi dysfunction in AP. **High-Yield Clinical Pearls for NEET-PG:** * **Most common cause of AP:** Gallstones (Global/India), followed by Alcohol. * **Fluid Resuscitation:** The most critical step in the first 12–24 hours. * **Antibiotics:** Routine prophylactic antibiotics are **not** recommended; they are only indicated for infected pancreatic necrosis. * **Feeding:** Early enteral nutrition (within 24 hours) is preferred over parenteral nutrition to maintain the gut barrier and prevent bacterial translocation.

Question 70: Which of the following statements about pancreatic carcinoma is not true?

A. Mutation in the P53 gene is associated in 75% of cases
B. Hereditary pancreatitis significantly increases the risk
C. Median survival in locally advanced (stage III) disease is 3-6 months (Correct Answer)
D. Five-year survival after curative pancreaticoduodenectomy is 15-20%

Explanation: ### Explanation **1. Why Option C is the Correct (False) Statement:** The median survival for **locally advanced (Stage III)** pancreatic cancer is typically **8–12 months**, not 3–6 months. A survival of 3–6 months is more characteristic of **metastatic (Stage IV)** disease. While the prognosis for pancreatic adenocarcinoma remains poor, advancements in multi-agent chemotherapy (like FOLFIRINOX or Gemcitabine/Nab-paclitaxel) have slightly extended survival benchmarks for non-metastatic unresectable cases. **2. Analysis of Other Options:** * **Option A (P53 Mutation):** This is a true statement. The **TP53** tumor suppressor gene is mutated in approximately **75%** of pancreatic cancers. Other common mutations include **KRAS** (>90%—the most common), **p16/CDKN2A** (95%), and **SMAD4/DPC4** (55%). * **Option B (Hereditary Pancreatitis):** This is true. Patients with hereditary pancreatitis (often due to **PRSS1** mutations) have a cumulative lifetime risk of pancreatic cancer approaching **40%**, representing a 50- to 70-fold increase over the general population. * **Option D (5-Year Survival):** This is true. Following a successful R0 resection (Whipple’s procedure) and adjuvant chemotherapy, the 5-year survival rate is approximately **15–25%**. Without surgery, the 5-year survival is less than 5%. **High-Yield Clinical Pearls for NEET-PG:** * **Most common site:** Head of the pancreas (70%). * **Courvoisier’s Law:** In a patient with painless jaundice and a palpable gallbladder, the cause is unlikely to be gallstones (more likely a periampullary malignancy). * **Tumor Marker:** **CA 19-9** (used for monitoring recurrence, not for screening). * **Investigation of choice:** Triple-phase Contrast-Enhanced CT (CECT)—often called a "Pancreatic Protocol CT." * **Double Duct Sign:** Dilatation of both the common bile duct and the pancreatic duct on imaging.

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

Practice Questions

Pancreatic Trauma

Practice Questions

Pancreatectomy Techniques

Practice Questions

Whipple Procedure

Practice Questions

Pancreatic Anastomosis

Practice Questions

Complications of Pancreatic Surgery

Practice Questions

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