Pancreatic Surgery — MCQs

Pancreatic Surgery Indian Medical PG Practice Questions and MCQs

Question 121: What is the treatment of choice for annular pancreas?

A. Whipple's operation
B. Duodeno-jejunostomy (Correct Answer)
C. Gastro-jejunostomy
D. Jejuno-cystostomy

Explanation: **Explanation:** **Annular Pancreas** is a congenital anomaly where a ring of pancreatic tissue encircles the second part of the duodenum. This occurs due to the failure of the ventral pancreatic bud to rotate properly during development. **1. Why Duodeno-jejunostomy is the Correct Answer:** The primary clinical manifestation of an annular pancreas is duodenal obstruction. The surgical treatment of choice is a **bypass procedure**, specifically a **Duodeno-jejunostomy** (or Duodeno-duodenostomy in neonates). This restores bowel continuity without touching the pancreas itself. **2. Why the Incorrect Options are Wrong:** * **Whipple’s operation (A):** This is a radical resection (Pancreaticoduodenectomy) used for malignancies. It is far too morbid and unnecessary for a benign obstructive condition. * **Gastro-jejunostomy (C):** While it bypasses the obstruction, it is associated with a high risk of stomal ulceration due to the continued presence of gastric acid without adequate buffering in the efferent limb. * **Jejuno-cystostomy (D):** This is not a standard surgical procedure for duodenal obstruction; it refers to a connection between the jejunum and a cyst (e.g., a pseudocyst), which is irrelevant here. * **Note on Resection:** Direct resection of the pancreatic ring is **contraindicated** because it often leads to pancreatic fistulas and may not relieve the obstruction, as the underlying duodenum is often stenotic. **High-Yield Clinical Pearls for NEET-PG:** * **Embryology:** Caused by the failure of the **ventral pancreatic bud** to rotate posteriorly. * **Presentation:** In neonates, it presents with "double bubble" sign on X-ray (similar to duodenal atresia). In adults, it may present with peptic ulcers or pancreatitis. * **Associated Condition:** Frequently associated with **Down Syndrome**. * **Gold Standard Diagnosis:** Contrast-enhanced CT (CECT) or MRCP.

Question 122: What is the most common symptom of chronic pancreatitis?

A. Abdominal pain (Correct Answer)
B. Cachexia
C. Weight loss
D. Steatorrhoea

Explanation: **Explanation:** **1. Why Abdominal Pain is the Correct Answer:** Abdominal pain is the hallmark and most common presenting symptom of chronic pancreatitis, occurring in approximately **85–90% of patients**. The pain is typically epigastric, often radiating to the back, and may be postprandial. The underlying pathophysiology involves a combination of increased intrapancreatic pressure (due to ductal obstruction/stones), neural inflammation (perineural fibrosis), and central sensitization. In the NEET-PG context, remember that while endocrine and exocrine functions decline over time, pain is the primary reason patients seek medical attention. **2. Analysis of Incorrect Options:** * **B. Cachexia:** This refers to severe muscle wasting and is a late-stage manifestation of malnutrition or malignancy (like pancreatic tail cancer), but it is not the primary or most frequent symptom. * **C. Weight Loss:** While common, weight loss usually occurs secondary to sitophobia (fear of eating due to pain) or malabsorption. It typically follows the onset of chronic pain. * **D. Steatorrhoea:** This is a sign of exocrine pancreatic insufficiency. It only manifests when **>90% of the pancreatic exocrine function** is lost. Therefore, it is a late feature rather than the most common initial symptom. **3. High-Yield Clinical Pearls for NEET-PG:** * **Classic Triad:** Pancreatic calcifications (most specific), Steatorrhoea, and Diabetes Mellitus (only seen in advanced stages). * **Most common cause:** Alcohol abuse (Worldwide and India). * **Investigation of Choice:** **MRCP** is the non-invasive gold standard for ductal anatomy; **CT scan** is best for detecting calcifications. * **Chain of Lakes Appearance:** A characteristic finding on ERCP/MRCP showing alternating segments of dilation and stenosis in the main pancreatic duct. * **Surgery:** Indicated primarily for intractable pain. **Puestow Procedure** (Lateral Pancreaticojejunostomy) is done for a dilated duct (>6mm).

Question 123: Which of the following can cause pancreatitis?

A. Ascending cholangitis
B. Elevated parathyroid hormone (PTH)
C. Common bile duct stones
D. Alcohol (Correct Answer)

Explanation: **Explanation:** Acute pancreatitis is primarily caused by factors that trigger the premature activation of pancreatic enzymes within the acinar cells, leading to autodigestion of the gland. **Correct Option (D): Alcohol** Alcohol is the second most common cause of acute pancreatitis worldwide (after gallstones). It causes pancreatitis through multiple mechanisms: it increases the permeability of ductules, exerts a direct toxic effect on acinar cells, and increases the protein content of pancreatic secretions, leading to the formation of protein plugs that obstruct small ducts. **Analysis of Incorrect Options:** * **A. Ascending Cholangitis:** While both conditions often share a common etiology (gallstones), ascending cholangitis is a bacterial infection of the biliary tree. It does not directly cause pancreatitis, though a stone causing cholangitis may simultaneously trigger gallstone pancreatitis. * **B. Elevated PTH:** Hyperparathyroidism leads to **Hypercalcemia**, which is a known cause of pancreatitis (calcium activates trypsinogen). However, the question asks for the *most* direct cause among the choices. In standard surgical teaching, alcohol and stones are primary causes, while hypercalcemia is a metabolic trigger. * **C. Common Bile Duct (CBD) Stones:** While "Gallstones" are the #1 cause of pancreatitis, the term "CBD stones" (Choledocholithiasis) specifically refers to stones within the duct. While they *can* cause pancreatitis if they obstruct the Ampulla of Vater, **Alcohol** is a more definitive, standalone systemic cause listed in the options. *Note: In many clinical scenarios, both C and D are correct. However, in the context of this specific question format, Alcohol is often highlighted as a classic direct toxin.* **High-Yield Clinical Pearls for NEET-PG:** * **Mnemonic (I GET SMASHED):** **I**diopathic, **G**allstones (Most common), **E**thanol, **T**rauma, **S**teroids, **M**umps, **A**utoimmune, **S**corpion sting, **H**ypertriglyceridemia/Hypercalcemia, **E**RCP, **D**rugs (Azathioprine, Thiazides). * **Pancreas Divisum:** The most common congenital anomaly of the pancreas; can cause recurrent pancreatitis. * **Sentinel Loop:** A localized ileus of the jejunum seen on X-ray, suggestive of underlying pancreatitis.

Question 124: Pancreaticoduodenectomy is not indicated in which of the following conditions?

A. Multiple cysts and calcifications in the head of the pancreas
B. Duodenal cancer
C. Failed drainage procedure for chronic pancreatitis
D. Ampullary carcinoma with secondaries in the peritoneum (Correct Answer)

Explanation: **Explanation:** The core principle in surgical oncology is that a major resection like **Pancreaticoduodenectomy (Whipple’s procedure)** is indicated only when the disease is localized and potentially curable. **1. Why Option D is correct:** Ampullary carcinoma with **peritoneal secondaries** (metastasis) signifies Stage IV systemic disease. In the presence of distant metastasis, a Whipple’s procedure is **contraindicated** because it is a morbid operation that will not offer a survival benefit or cure. In such cases, palliative care (e.g., biliary stenting or bypass) is preferred over radical resection. **2. Why the other options are incorrect:** * **Option A (Multiple cysts/calcifications in the head):** In chronic pancreatitis, if the disease is localized primarily to the head of the pancreas (inflammatory mass), a Whipple’s or a Beger’s procedure is a standard surgical treatment to relieve pain and obstruction. * **Option B (Duodenal cancer):** Whipple’s procedure is the definitive curative surgery for cancers of the duodenum, as they share a common blood supply with the pancreatic head. * **Option C (Failed drainage procedure):** If a previous drainage procedure (like a Frey’s or Puestow) fails to relieve pain in chronic pancreatitis, a formal resection (Whipple’s) is often the next step to remove the "pacemaker" of pain in the pancreatic head. **Clinical Pearls for NEET-PG:** * **Absolute Contraindications for Whipple’s:** Distant metastasis (liver, peritoneum, lungs), involvement of the Superior Mesenteric Artery (SMA) >180°, or Celiac axis involvement. * **Borderline Resectable:** Involvement of the Superior Mesenteric Vein (SMV) or Portal Vein (PV) is no longer an absolute contraindication; these can often be reconstructed. * **Most common complication:** Delayed gastric emptying. * **Most serious complication:** Pancreatic fistula (leak).

Question 125: Ranson scoring for acute pancreatitis includes which of the following criteria?

A. Age > 55 years, WBC > 16000/mm³, BUN > 10 mg/dL, LDH > 700 IU/L
B. Age > 55 years
C. Age > 55 years, LDH > 700 IU/L
D. Age > 55 years, WBC > 16000/mm³ (Correct Answer)

Explanation: **Explanation:** Ranson’s Criteria is a classic scoring system used to predict the severity and mortality of **acute pancreatitis**. It is unique because it assesses parameters at two distinct time points: **at admission** and **at 48 hours**. **Why Option D is Correct:** The criteria evaluated **at admission** (for non-gallstone pancreatitis) include: 1. **Age > 55 years** 2. **WBC count > 16,000/mm³** 3. Blood Glucose > 200 mg/dL 4. AST > 250 IU/L 5. LDH > 350 IU/L Option D correctly identifies two of these primary admission parameters. **Analysis of Incorrect Options:** * **Option A:** While it includes Age and WBC, the **BUN** is a parameter measured at **48 hours** (specifically an increase of >5 mg/dL), and the **LDH** threshold is incorrect (it should be >350 IU/L, not 700). * **Option B:** This is incomplete as it only lists one criterion. * **Option C:** The LDH value of >700 IU/L is incorrect for the standard Ranson score. **NEET-PG High-Yield Pearls:** * **Mnemonic for Admission (GALAW):** **G**lucose (>200), **A**ge (>55), **L**DH (>350), **A**ST (>250), **W**BC (>16k). * **Mnemonic for 48 Hours (CHOBBS):** **C**alcium (<8 mg/dL), **H**ematocrit drop (>10%), **O**xygen (PaO₂ <60 mmHg), **B**UN increase (>5 mg/dL), **B**ase deficit (>4 mEq/L), **S**equestration of fluid (>6L). * **Clinical Significance:** A score of <3 indicates mild pancreatitis (mortality <1%), while a score of >6 indicates severe pancreatitis (mortality ~40%). * **Limitation:** Ranson’s score cannot be completed until 48 hours after admission, which is its main clinical drawback compared to the **APACHE II** score.

Question 126: A 30-year-old patient is investigated for acute pancreatitis. Which scoring system is used for the early prediction of mortality?

A. BISAP (Correct Answer)
B. Balthazar scoring system
C. Ranson's
D. APACHE II

Explanation: **Explanation:** The **BISAP (Bedside Index for Severity in Acute Pancreatitis)** score is the preferred tool for the **early prediction** of mortality in acute pancreatitis. Its primary advantage is its simplicity and the ability to calculate it within the **first 24 hours** of admission using clinical and laboratory data. **Why BISAP is correct:** The BISAP score consists of 5 parameters (BUN >25 mg/dL, Impaired mental status, SIRS, Age >60, and Pleural effusion). A score of ≥3 is associated with a significantly increased risk of mortality. Unlike older systems, it does not require a 48-hour waiting period, making it ideal for early triage. **Analysis of Incorrect Options:** * **Balthazar scoring system:** This is a **radiological** scoring system based on CT findings (CT Severity Index). It assesses local complications (necrosis/inflammation) rather than early clinical mortality risk. * **Ranson’s Criteria:** While classic, it requires **48 hours** to complete the assessment (5 parameters at admission, 6 at 48 hours). Therefore, it cannot be used for "early" (immediate) prediction. * **APACHE II:** Though highly accurate and usable at any time, it is extremely **cumbersome** (12 physiological variables), making it less practical for routine bedside use compared to BISAP. **High-Yield Clinical Pearls for NEET-PG:** * **Most common cause of death** in early phase (<2 weeks): Organ failure (SIRS). * **Most common cause of death** in late phase (>2 weeks): Sepsis/Infected necrosis. * **Gold Standard** for diagnosing pancreatic necrosis: Contrast-Enhanced CT (CECT), ideally performed after 72–96 hours of symptom onset. * **Single best laboratory marker** for severity: C-Reactive Protein (CRP) >150 mg/L at 48 hours.

Question 127: All of the following are used in the treatment of acute pancreatitis EXCEPT?

A. Analgesics
B. IV fluids
C. Antibiotics (Correct Answer)
D. Nasojejunal feeds

Explanation: The management of acute pancreatitis (AP) has shifted toward conservative, supportive care. The correct answer is **Antibiotics** because current guidelines (IAP/APA) recommend against their routine prophylactic use in AP, regardless of severity or the presence of sterile necrosis. ### **Explanation of Options:** * **Antibiotics (Correct Answer):** Acute pancreatitis is primarily a chemical inflammation, not a bacterial infection. Prophylactic antibiotics do not reduce the risk of infected necrosis or mortality. They are indicated **only** if there is evidence of infection (e.g., infected necrosis, cholangitis, or extra-pancreatic infections like UTI/pneumonia). * **IV Fluids:** Aggressive fluid resuscitation (preferably Ringer’s Lactate) is the cornerstone of early management to maintain pancreatic perfusion and prevent "walled-off" necrosis and organ failure. * **Analgesics:** Pain management is vital. While NSAIDs are avoided due to renal risks, opioids (like Buprenorphine or Fentanyl) are commonly used. *Note: The old teaching that Morphine causes Sphincter of Oddi spasm is clinically insignificant.* * **Nasojejunal (NJ) Feeds:** Early enteral nutrition (within 24–72 hours) is preferred over parenteral nutrition. NJ feeds help maintain the gut mucosal barrier, preventing bacterial translocation and subsequent infection of necrotic tissue. ### **High-Yield Clinical Pearls for NEET-PG:** * **Drug of Choice for Pain:** Traditionally Pethidine (due to less Sphincter of Oddi spasm), but modern practice favors multimodal analgesia. * **Nutrition:** "Enteral is better than Parenteral." If the patient tolerates it, oral feeding is started; if not, NJ tube feeding is the gold standard for severe cases. * **Antibiotic Choice:** If infection is proven, **Carbapenems** (e.g., Imipenem) are preferred due to high pancreatic tissue penetration. * **Most common cause:** Gallstones (1st), Alcohol (2nd).

Question 128: Which of the following conditions is not an indication for pancreaticoduodenectomy?

A. Multiple cysts and calcifications in the head of the pancreas
B. Narrow pancreatic duct (Correct Answer)
C. Failed drainage procedure for chronic pancreatitis
D. Possibility of malignancy in the head of the pancreas

Explanation: ### Explanation **Pancreaticoduodenectomy (Whipple’s procedure)** is a major resection used for both malignant and specific benign conditions of the pancreatic head and periampullary region. **Why "Narrow pancreatic duct" is the correct answer:** In chronic pancreatitis, the choice of surgery depends largely on the **ductal morphology**. A **narrow pancreatic duct** (typically <5–7 mm) is a contraindication for drainage procedures (like the Frey or Partington-Rochelle procedure) because there is no dilated duct to anastomose to the jejunum. In such cases, if the disease is localized to the head, a resection (Whipple’s or Beger’s) is indicated. Therefore, a narrow duct is an **indication for resection**, not a reason to avoid it. Conversely, a dilated duct is the primary indication for drainage procedures. **Analysis of other options:** * **Multiple cysts and calcifications in the head (Option A):** This represents "head-dominant" chronic pancreatitis. When the inflammatory mass is localized to the head, resection (Whipple’s) is the definitive treatment to relieve pain and biliary/duodenal obstruction. * **Failed drainage procedure (Option C):** If a previous Puestow or Frey procedure fails to provide pain relief, a salvage resection (Whipple’s) is the standard next step. * **Possibility of malignancy (Option D):** Any suspicious mass in the head of the pancreas where malignancy cannot be ruled out is a classic indication for a Whipple’s procedure. **High-Yield Clinical Pearls for NEET-PG:** * **Chain of Lakes Appearance:** Classic ERCP finding in chronic pancreatitis (dilated duct with strictures); indicates a **drainage procedure** (Partington-Rochelle). * **Frey’s Procedure:** A hybrid procedure (local resection of the head + longitudinal pancreaticojejunostomy) used for head-dominant disease with a dilated duct. * **Whipple’s vs. PPPD:** Pylorus-preserving pancreaticoduodenectomy (PPPD) has similar long-term survival to standard Whipple’s but may have a higher incidence of delayed gastric emptying.

Question 129: A 15-year-old female presents with right upper quadrant abdominal pain. Workup reveals a choledochal cyst. Which of the following statements is true?

A. Choledochal cysts are more common in men.
B. Laparoscopic cholecystectomy is the recommended treatment.
C. Patients with a choledochal cyst have an increased risk of cholangiocarcinoma. (Correct Answer)
D. All patients with a choledochal cyst have abdominal pain, a right upper quadrant mass, and jaundice.

Explanation: ### Explanation **1. Why Option C is Correct:** Choledochal cysts are congenital cystic dilatations of the biliary tree. The most significant long-term complication is the development of **cholangiocarcinoma** (bile duct cancer). This risk is attributed to chronic inflammation and cellular dysplasia caused by the stasis of bile and the frequent association with an **Anomalous Pancreaticobiliary Duct Junction (APBDJ)**. In APBDJ, pancreatic enzymes reflux into the common bile duct, leading to chronic irritation of the biliary epithelium. The risk of malignancy increases with age, which is why early surgical intervention is mandatory. **2. Why the Other Options are Incorrect:** * **Option A:** Choledochal cysts show a strong **female predilection**, with a female-to-male ratio of approximately **4:1**. * **Option B:** Laparoscopic cholecystectomy alone is insufficient. The standard treatment is **complete cyst excision** followed by biliary reconstruction (typically a **Roux-en-Y Hepaticojejunostomy**). Leaving the cyst wall behind maintains the risk of malignancy. * **Option D:** The "Classic Triad" consists of abdominal pain, jaundice, and a palpable RUQ mass. However, this triad is present in only **10–20%** of patients, mostly in the pediatric population. Most patients present with only one or two of these symptoms. **3. NEET-PG High-Yield Pearls:** * **Todani Classification:** The most widely used system. **Type I** (fusiform dilatation of CBD) is the most common (80-90%). **Type V** is known as **Caroli’s Disease**. * **Diagnosis:** Ultrasound is the initial screening tool; **MRCP** is the gold standard for mapping the anatomy before surgery. * **Malignancy Risk:** Even after excision, patients require lifelong follow-up as there remains a small residual risk of cancer in the remaining intrahepatic ducts.

Question 130: A 5 cm pancreatic pseudocyst with a duration of 3 weeks should be managed by which method?

A. Cystogastrostomy
B. Needle aspiration
C. External drainage
D. Ultrasound and follow-up (Correct Answer)

Explanation: ### Explanation The management of a pancreatic pseudocyst is primarily determined by two factors: **symptoms** and the **maturity of the cyst wall**. **Why "Ultrasound and follow-up" is correct:** A pancreatic pseudocyst is a collection of fluid surrounded by a wall of granulation tissue (not epithelium). In this case, the cyst is **5 cm** and has existed for only **3 weeks**. 1. **Size:** Cysts <6 cm are frequently asymptomatic and have a high rate of spontaneous resolution. 2. **Duration:** It takes approximately **6 weeks** for the pseudocyst wall to "mature" (fibrose) enough to hold sutures for internal drainage. At 3 weeks, the wall is friable and immature. 3. **Stability:** In an asymptomatic patient, the standard of care is conservative management with serial imaging (Ultrasound or CT) to monitor for resolution or complications. **Why the other options are incorrect:** * **Cystogastrostomy (A):** This is the treatment of choice for mature, symptomatic pseudocysts. However, it is contraindicated at 3 weeks because the wall is too thin to suture, and many cysts of this size resolve spontaneously before 6 weeks. * **Needle Aspiration (B):** This carries a high risk of secondary infection and an extremely high recurrence rate (up to 70-90%) as the fluid quickly re-accumulates. * **External Drainage (C):** This is generally avoided as it often leads to the formation of a **pancreaticocutaneous fistula**, which is difficult to manage. It is reserved only for infected pseudocysts where the patient is too unstable for definitive surgery. **Clinical Pearls for NEET-PG:** * **Rule of 6s:** Traditionally, cysts **>6 cm** or persisting **>6 weeks** were considered for surgery. Modern practice, however, prioritizes **symptoms** (pain, gastric outlet obstruction, biliary obstruction) over size alone. * **Most common site:** Lesser sac. * **Investigation of choice:** Contrast-Enhanced CT (CECT). * **Prerequisite for Internal Drainage:** The cyst wall must be mature (usually 6 weeks).

Practice by Chapter

Pancreatic Anatomy and Physiology

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Acute Pancreatitis

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Chronic Pancreatitis

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Pancreatic Pseudocysts

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Pancreatic Adenocarcinoma

Practice Questions

Cystic Neoplasms of Pancreas

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Neuroendocrine Tumors of Pancreas

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Pancreatic Trauma

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Pancreatectomy Techniques

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Whipple Procedure

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Pancreatic Anastomosis

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Complications of Pancreatic Surgery

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