Pancreatic Surgery — MCQs

A 62-year-old man complains of experiencing intermittent, but increasing abdominal pain, and has had a 9 kg weight loss in the last month. On physical examination, he seems to be slightly jaundiced. Alkaline phosphatase and bilirubin are increased. CT scan demonstrates a mass in the head of the pancreas. Which of the following surgical methods is used most often to treat patients with small tumors of the head of the pancreas with no evidence of metastasis?

Q245Easy

All of the following statements about Insulinoma are true EXCEPT:

Q246Medium

A chronic alcoholic presents with abdominal pain radiating to the back that responds to analgesics. At evaluation, the pancreatic duct was found to be dilated and stones were noted in the tail of the pancreas. What is the most appropriate management?

Q247Easy

Cullen sign is observed:

Q248Easy

Cullen's sign is seen in which of the following conditions?

Q249Easy

Whipple's triad is seen in which of the following conditions?

Q250Medium

Which artery is most commonly involved in pancreatic pseudoaneurysm?

Pancreatic Surgery Indian Medical PG Practice Questions and MCQs

Question 241: A 73-year-old woman is evaluated for obstructive jaundice after an injury to the common bile duct 7 months previously during laparoscopic cholecystectomy. The alkaline phosphatase level is elevated. In obstructive jaundice, which of the following statements is true regarding alkaline phosphatase?

A. Its level increases before that of bilirubin. (Correct Answer)
B. Its level is unlikely to be increased in pancreatic malignancy.
C. Its elevation indicates bone metastasis.
D. Its elevation excludes hepatic metastasis.

Explanation: **Explanation:** In the setting of biliary obstruction (obstructive jaundice), **Alkaline Phosphatase (ALP)** is a highly sensitive marker. It is produced by the biliary canalicular membranes in response to increased pressure or bile acid accumulation. **Why Option A is correct:** ALP has a much lower threshold for elevation than bilirubin. In early or partial biliary obstruction (such as a developing stricture or a small stone), the synthesis and release of ALP into the bloodstream increase **before** the biliary pressure is high enough to cause significant regurgitation of conjugated bilirubin into the blood. Therefore, a "disproportionate" rise in ALP compared to bilirubin is a hallmark of early cholestasis. **Analysis of Incorrect Options:** * **Option B:** Pancreatic malignancy (especially of the head) typically causes progressive, high-grade biliary obstruction, leading to some of the highest recorded levels of ALP. * **Option C:** While ALP is found in bone, in the context of obstructive jaundice and elevated bilirubin, the elevation is primarily of the **heat-stable (liver) isoenzyme**. It does not automatically indicate bone metastasis unless specific bone isoenzymes are tested. * **Option D:** Hepatic metastases often cause localized biliary obstruction or "space-occupying" effects within the liver, which characteristically **increase** ALP levels, even if the total bilirubin remains normal. **NEET-PG High-Yield Pearls:** * **Markers of Cholestasis:** ALP and GGT (Gamma-Glutamyl Transferase). If both are elevated, the source is likely hepatobiliary. * **Courvoisier’s Law:** In a patient with painless obstructive jaundice and a palpable gallbladder, the cause is unlikely to be gallstones (usually malignancy). * **Post-cholecystectomy Stricture:** Typically presents months after surgery (as seen in this case) due to ischemic injury or clip misplacement during the initial procedure.

Question 242: What is the primary management of a pancreatic abscess?

A. Needle aspiration (Correct Answer)
B. Cystogastrostomy
C. USG guided drainage
D. Cystojejunostomy

Explanation: **Explanation:** The primary management of a pancreatic abscess is **Needle Aspiration** (typically USG or CT-guided). A pancreatic abscess is a late complication of acute pancreatitis, occurring 4+ weeks after the onset, characterized by a circumscribed collection of pus. **Why Needle Aspiration is correct:** In the management of infected pancreatic collections, the initial step is diagnostic and therapeutic aspiration. It allows for Gram staining and culture to guide antibiotic therapy. While many abscesses may eventually require catheter drainage, **percutaneous needle aspiration** remains the standard first-line intervention to confirm the diagnosis and initiate source control in a minimally invasive manner. **Analysis of Incorrect Options:** * **Cystogastrostomy (B) and Cystojejunostomy (D):** These are surgical internal drainage procedures used for **Pancreatic Pseudocysts**, not for acute abscesses. Internal drainage of an infected collection (abscess) is contraindicated as it can lead to worsening sepsis and peritonitis. * **USG guided drainage (C):** While often used, "drainage" usually implies the placement of a large-bore indwelling catheter. In the context of standard surgical teaching (Bailey & Love/Sabiston), the initial step is the aspiration itself. If aspiration fails or the patient remains septic, a formal percutaneous catheter drainage or necrosectomy is considered. **High-Yield Clinical Pearls for NEET-PG:** * **Timeline:** Pancreatic abscess usually develops **>4 weeks** after an attack of acute pancreatitis. * **Diagnosis:** CT scan shows a fluid collection with **internal gas bubbles** (pathognomonic). * **Distinction:** Unlike infected necrosis (which contains solid debris), an abscess is a localized collection of liquid pus. * **Gold Standard for Infected Necrosis:** Step-up approach (starting with percutaneous drainage, followed by minimally invasive necrosectomy if needed).

Question 243: What is the treatment of choice for cancer of the head of the pancreas?

A. Radiotherapy
B. Chemotherapy plus radiotherapy
C. Whipple's surgery (Correct Answer)
D. Resection of the entire pancreas with adjuvant chemotherapy

Explanation: **Explanation:** The primary goal in managing resectable periampullary and pancreatic head cancers is surgical excision with negative margins (R0 resection). **1. Why Whipple’s Surgery is correct:** **Whipple’s Pancreaticoduodenectomy** is the gold-standard treatment for resectable cancer of the head of the pancreas. The procedure involves the removal of the pancreatic head, duodenum, gallbladder, common bile duct, and sometimes the distal stomach (classic Whipple). This is necessary because the pancreatic head shares a common blood supply (gastroduodenal artery) and anatomical intimacy with the duodenum and biliary tree. **2. Why the other options are incorrect:** * **Options A & B:** Radiotherapy and Chemotherapy are generally used as **adjuvant** (post-surgery) or **neoadjuvant** (pre-surgery) treatments, or as palliative care for unresectable/metastatic disease. They are not curative "treatments of choice" on their own. * **Option D:** Total pancreatectomy (resection of the entire pancreas) is rarely indicated. It does not significantly improve survival compared to the Whipple procedure and results in "brittle diabetes" and severe exocrine insufficiency, significantly reducing the patient's quality of life. **Clinical Pearls for NEET-PG:** * **Resectability Criteria:** A tumor is considered resectable if there is no distant metastasis and no involvement of the Superior Mesenteric Artery (SMA) or Celiac axis. * **Pylorus-Preserving Pancreaticoduodenectomy (PPPD):** A common modification of the Whipple procedure that preserves the entire stomach and pylorus to improve post-operative nutritional status. * **Most Common Site:** 75% of pancreatic cancers occur in the **head**. * **Tumor Marker:** **CA 19-9** is the most specific marker for monitoring recurrence and response to treatment.

Question 244: A 62-year-old man complains of experiencing intermittent, but increasing abdominal pain, and has had a 9 kg weight loss in the last month. On physical examination, he seems to be slightly jaundiced. Alkaline phosphatase and bilirubin are increased. CT scan demonstrates a mass in the head of the pancreas. Which of the following surgical methods is used most often to treat patients with small tumors of the head of the pancreas with no evidence of metastasis?

A. Billroth I procedure
B. Billroth II procedure
C. Roux-en-Y gastric bypass
D. Whipple procedure (Correct Answer)

Explanation: ### Explanation **Correct Answer: D. Whipple procedure** **1. Why it is correct:** The clinical presentation—painless jaundice, significant weight loss, and a mass in the head of the pancreas—is highly suggestive of **periampullary carcinoma** or **pancreatic head adenocarcinoma**. For localized tumors in the head of the pancreas, the standard surgical treatment is the **Pancreaticoduodenectomy**, commonly known as the **Whipple procedure**. This complex surgery involves the resection of the pancreatic head, duodenum, gallbladder, common bile duct, and sometimes the distal stomach (antrum), followed by reconstruction (Pancreaticojejunostomy, Hepaticojejunostomy, and Gastrojejunostomy). **2. Why the other options are incorrect:** * **Billroth I & II (Options A & B):** These are types of reconstructions performed after a **partial gastrectomy** (usually for peptic ulcer disease or gastric cancer). Billroth I is a gastroduodenostomy, and Billroth II is a gastrojejunostomy. Neither addresses the pathology of the pancreas or biliary tree. * **Roux-en-Y gastric bypass (Option C):** This is a bariatric procedure used for weight loss or occasionally for metabolic surgery. While "Roux-en-Y" is a method of reconstruction used in many surgeries, a gastric bypass does not involve resection of a pancreatic mass. **3. NEET-PG High-Yield Pearls:** * **Courvoisier’s Law:** In a patient with painless jaundice and a palpable gallbladder, the cause is unlikely to be gallstones and is more likely to be a malignancy (e.g., pancreatic head cancer). * **Pylorus-Preserving Pancreaticoduodenectomy (PPPD):** A modification of the Whipple procedure where the entire stomach and pylorus are preserved; it has similar oncological outcomes but may lead to delayed gastric emptying. * **Most common site of pancreatic cancer:** Head of the pancreas (approx. 65-70%). * **Tumor Marker:** **CA 19-9** is the most specific marker for monitoring recurrence and response to treatment in pancreatic cancer.

Question 245: All of the following statements about Insulinoma are true EXCEPT:

A. Most commonly found in the pancreas
B. Usually benign
C. Usually multiple (Correct Answer)
D. Derived from beta cells

Explanation: **Explanation:** Insulinoma is the most common functional neuroendocrine tumor (NET) of the pancreas. The correct answer is **C** because insulinomas are characteristically **solitary (90%)**. Multiple insulinomas are rare (10%) and are strongly associated with **Multiple Endocrine Neoplasia type 1 (MEN1) syndrome**. **Analysis of Options:** * **A. Most commonly found in the pancreas:** This is true. Unlike gastrinomas, which can be extrapancreatic (Gastrinoma triangle), insulinomas are almost exclusively found within the pancreas, distributed equally across the head, body, and tail. * **B. Usually benign:** This is true. Approximately 90% of insulinomas are benign, while only 10% are malignant (defined by the presence of metastases). * **D. Derived from beta cells:** This is true. They originate from the pancreatic islet beta cells and autonomously secrete insulin, leading to fasting hypoglycemia. **High-Yield Clinical Pearls for NEET-PG:** * **Whipple’s Triad:** Essential for diagnosis—(1) Symptoms of hypoglycemia during fasting/exercise, (2) Documented low blood glucose (<50 mg/dL), and (3) Relief of symptoms upon glucose administration. * **Diagnosis:** The "Gold Standard" is the **72-hour fasting test**, showing elevated insulin (>3 µIU/mL) and C-peptide (>0.6 ng/mL) levels despite hypoglycemia. * **Localization:** Intraoperative ultrasound (IOUS) combined with surgical exploration is the most sensitive method for localization. * **Management:** Surgical enucleation is the treatment of choice for solitary benign tumors. Medical management includes **Diazoxide**, which inhibits insulin release.

Question 246: A chronic alcoholic presents with abdominal pain radiating to the back that responds to analgesics. At evaluation, the pancreatic duct was found to be dilated and stones were noted in the tail of the pancreas. What is the most appropriate management?

A. Pancreatic tail resection
B. Pancreaticojejunostomy
C. Percutaneous removal of stones
D. Medical management (Correct Answer)

Explanation: **Explanation:** The patient presents with classic symptoms of **Chronic Pancreatitis (CP)**. The hallmark of management in CP is a **step-up approach**, starting with the most conservative measures. **Why Medical Management is Correct:** In Chronic Pancreatitis, the primary indication for surgery is **intractable pain** that fails to respond to medical therapy. This patient’s pain currently **responds to analgesics**. Therefore, the initial management must be medical, focusing on lifestyle modifications (alcohol/smoking cessation), pancreatic enzyme replacement therapy (PERT), and a WHO-defined analgesic ladder. Surgery is reserved for patients with "refractory" pain or complications (e.g., biliary obstruction, pseudocysts). **Why Other Options are Incorrect:** * **Pancreatic Tail Resection (Distal Pancreatectomy):** This is only considered if the disease is strictly localized to the tail and medical therapy has failed. It is not the first-line treatment. * **Pancreaticojejunostomy (e.g., Partington-Rochelle procedure):** This is the surgical treatment of choice for a dilated main pancreatic duct (>6 mm) with intractable pain. Since the patient's pain is currently controlled, surgery is premature. * **Percutaneous removal of stones:** This is not a standard or effective treatment for pancreatic calculi. Endoscopic (ERCP/ESWL) or surgical methods are preferred if intervention is indicated. **Clinical Pearls for NEET-PG:** * **Chain of Lakes Appearance:** The classic radiological finding in CP due to alternating segments of dilatation and stenosis in the pancreatic duct. * **Surgical Indications:** Intractable pain (most common), CBD/Duodenal obstruction, or suspicion of malignancy. * **Procedure of Choice:** For a dilated duct (>6mm), **Lateral Pancreaticojejunostomy (Frey’s or Partington-Rochelle)** is preferred. For small duct disease, a **V-shaped excision (Izbicki procedure)** or total pancreatectomy may be considered.

Question 247: Cullen sign is observed:

A. Around the umbilicus (Correct Answer)
B. In the flanks
C. In the epigastrium
D. In the back

Explanation: **Explanation:** **Cullen’s sign** is defined as superficial edema and bruising (ecchymosis) in the subcutaneous fatty tissue **around the umbilicus**. In the context of acute pancreatitis, it occurs when pancreatic enzymes cause retroperitoneal hemorrhage; this blood then tracks along the falciform ligament to the umbilicus. * **Why Option A is correct:** The anatomical pathway of the falciform ligament leads directly to the periumbilical area, making it the specific site for Cullen’s sign. * **Why Options B, C, and D are incorrect:** * **Flanks:** Bruising here is known as **Grey Turner’s sign**, caused by blood tracking from the pararenal space to the lateral abdominal wall. * **Epigastrium/Back:** While pain often radiates to these areas in pancreatitis, they are not the classic sites for named ecchymotic signs. **Fox’s sign** refers to bruising over the inguinal ligament. **High-Yield Clinical Pearls for NEET-PG:** 1. **Significance:** These signs are not diagnostic of pancreatitis but are indicators of **severe necrotizing pancreatitis** with retroperitoneal hemorrhage. 2. **Prognosis:** Their presence is associated with a higher mortality rate (increased Ranson or APACHE II scores). 3. **Differential Diagnosis:** Besides pancreatitis, Cullen’s sign can be seen in ruptured ectopic pregnancy (the original description by Thomas Cullen), ruptured aortic aneurysm, or perforated duodenal ulcer. 4. **Mnemonic:** **C**ullen = **C**entral (Umbilicus); **G**rey **T**urner = **T**urn to the side (Flanks).

Question 248: Cullen's sign is seen in which of the following conditions?

A. Peritonitis
B. Chronic pancreatitis
C. Pancreatic cancer
D. Acute pancreatitis (Correct Answer)

Explanation: **Explanation:** **Cullen’s sign** is defined as superficial edema and bruising (ecchymosis) in the subcutaneous fatty tissue around the **umbilicus**. In the context of **Acute Pancreatitis**, it indicates severe, necrotizing disease. The underlying mechanism involves the release of pancreatic enzymes (like elastase), which cause retroperitoneal hemorrhage. This blood tracks forward along the **falciform ligament** to the umbilicus, manifesting as periumbilical discoloration. **Analysis of Options:** * **Acute Pancreatitis (Correct):** It is a classic sign of hemorrhagic pancreatitis, though it is not pathognomonic (it can also occur in ruptured ectopic pregnancy or ruptured AAA). * **Peritonitis:** While peritonitis can occur due to pancreatitis, it generally presents with guarding, rigidity, and rebound tenderness rather than specific periumbilical ecchymosis. * **Chronic Pancreatitis:** This is a condition of progressive fibrosis and exocrine/endocrine insufficiency; it does not typically involve the acute retroperitoneal hemorrhage required to produce Cullen's sign. * **Pancreatic Cancer:** Usually presents with obstructive jaundice (Courvoisier’s law) or weight loss, not acute subcutaneous bruising. **High-Yield Clinical Pearls for NEET-PG:** 1. **Grey Turner’s Sign:** Ecchymosis of the **flanks**; also indicates retroperitoneal hemorrhage. 2. **Fox’s Sign:** Ecchymosis over the **inguinal ligament**. 3. **Prognostic Value:** These signs are seen in only 1-3% of cases but are associated with a higher mortality rate (indicating severe pancreatitis). 4. **Differential Diagnosis:** Always consider **ruptured ectopic pregnancy** if Cullen's sign is seen in a female of reproductive age.

Question 249: Whipple's triad is seen in which of the following conditions?

A. Pancreatic carcinoma
B. Insulinoma (Correct Answer)
C. Gastrinoma
D. Somatostatinoma

Explanation: **Explanation:** **Whipple’s Triad** is the classic clinical diagnostic hallmark of **Insulinoma**, the most common functioning neuroendocrine tumor of the pancreas. The triad consists of: 1. **Symptoms of hypoglycemia:** These include neuroglycopenic symptoms (confusion, visual changes, seizures) and autonomic symptoms (sweating, palpitations, tremors), typically occurring during fasting or exercise. 2. **Low Blood Glucose:** Documentation of plasma glucose levels <50 mg/dL during an episode. 3. **Relief of symptoms:** Prompt resolution of symptoms following the administration of glucose. **Analysis of Options:** * **B. Insulinoma (Correct):** These tumors autonomously secrete insulin, leading to hyperinsulinemic hypoglycemia, which manifests as Whipple’s triad. * **A. Pancreatic Carcinoma:** Usually presents with painless progressive jaundice (if in the head), weight loss, and Courvoisier’s sign, not hypoglycemia. * **C. Gastrinoma (Zollinger-Ellison Syndrome):** Presents with refractory peptic ulcers and diarrhea due to hypersecretion of gastric acid. * **D. Somatostatinoma:** Presents with an inhibitory triad of gallstones, diabetes mellitus (due to insulin inhibition), and steatorrhea. **High-Yield Clinical Pearls for NEET-PG:** * **Localization:** Most insulinomas are small (<2 cm), solitary, and benign (90%). * **Diagnosis:** The gold standard is the **72-hour supervised fast**. During hypoglycemia, insulin levels will be ≥3 μU/mL and **C-peptide levels ≥0.6 ng/mL** (distinguishes it from exogenous insulin surreptitious use). * **Treatment:** Surgical enucleation is the treatment of choice for most benign insulinomas. * **Association:** 10% of insulinomas are associated with **MEN-1 syndrome**.

Question 250: Which artery is most commonly involved in pancreatic pseudoaneurysm?

A. Gastroduodenal artery
B. Inferior pancreaticoduodenal artery
C. Gastric artery
D. Splenic artery (Correct Answer)

Explanation: ### Explanation **Correct Option: D. Splenic artery** A pancreatic pseudoaneurysm is a life-threatening complication of chronic or acute pancreatitis. It occurs when pancreatic enzymes (especially trypsin) leak and cause autodigestion of the walls of adjacent peripancreatic arteries. The weakened wall dilates, forming a "false" aneurysm. The **Splenic artery** is the most common site (involved in approximately **35–50%** of cases) because of its long, tortuous course along the superior border of the pancreas, making it highly vulnerable to enzymatic erosion from pseudocysts or inflammatory collections in the lesser sac. **Analysis of Incorrect Options:** * **A. Gastroduodenal artery (GDA):** This is the second most common site (approx. 20–25%). It is typically involved in cases where the inflammation is localized to the head of the pancreas. * **B. Inferior pancreaticoduodenal artery:** While it can be involved, it is much less common than the splenic or gastroduodenal arteries. * **C. Gastric artery:** The left gastric artery is rarely involved compared to the major vessels directly bordering the pancreatic parenchyma. **High-Yield Clinical Pearls for NEET-PG:** * **Clinical Presentation:** Classically presents as a sudden "sentinel" bleed into the GI tract (via the pancreatic duct, known as **Hemosuccus Pancreaticus**), or sudden increase in pseudocyst size. * **Gold Standard Investigation:** **Digital Subtraction Angiography (DSA)**—it is both diagnostic and therapeutic. * **Initial Investigation of Choice:** Contrast-enhanced CT (CECT) or CT Angiography. * **Management:** The first-line treatment is **Angiographic Embolization**. Surgery (ligation or distal pancreatectomy) is reserved for hemodynamically unstable patients or failed embolization.

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

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