Pancreatic Surgery — MCQs

A 55-year-old man with a history of heavy alcohol use presents with severe epigastric pain radiating to the back. His lipase is 1,200 U/L (normal <60), and CT shows pancreatic inflammation with peripancreatic fluid collection. On day 3, he develops hypocalcemia (Ca 7.8 mg/dL) and his lactate dehydrogenase is 400 U/L. What is the most likely explanation for these laboratory changes?

Q305

A 52-year-old man presents with an 8 cm pancreatic head mass with biliary obstruction. Biopsy shows adenocarcinoma. Staging shows no distant metastases, but the tumor encases the superior mesenteric artery. The oncologist recommends neoadjuvant therapy, the patient wants immediate surgery, and the family requests a second opinion. Evaluate the management approach.

Q306

Carcinoma of pancreas attains largest size when it is sited in -

Q307

A young patient presents with a massive injury to proximal duodenum, head of pancreas and distal common bile duct requiring definitive surgical management. The procedure of choice in this patient should be

Q308

True about pancreatic pseudocysts is:

Q309

All are true about Whipple procedure except?

Q310

A 60-year-old man presents with jaundice and abdominal pain. An ultrasound reveals a pancreatic mass compressing the common bile duct. Further imaging confirms a resectable tumor. Which treatment plan would be the most appropriate for this patient?

Pancreatic Surgery Indian Medical PG Practice Questions and MCQs

Question 301: Treatment of choice for annular pancreas is

A. Resection
B. Pyloromyotomy
C. Gastrojejunostomy
D. Duodenoduodenostomy (Correct Answer)

Explanation: ***Duodenoduodenostomy*** - This procedure bypasses the **annular pancreatic constriction** by creating an anastomosis between two healthy segments of the **duodenum**, restoring normal flow. - It's preferred because it avoids manipulation or resection of the pancreatic tissue itself, which can lead to complications such as **pancreatitis** or **fistula formation**. *Resection* - Direct resection of the **annular pancreas** is generally avoided due to the high risk of **pancreatitis**, **fistulae**, and injury to the **biliary duct** or **main pancreatic duct**. - The abnormal pancreatic tissue is often intimately associated with the **duodenal wall**, making its complete removal difficult and dangerous. *Pyloromyotomy* - This procedure involves incising the muscle layer of the **pylorus** and is typically used for conditions like **pyloric stenosis**. - It does not address the obstruction caused by an annular pancreas around the **duodenum**. *Gastrojejunostomy* - This procedure involves creating a connection between the **stomach** and the **jejunum** to bypass a distal duodenal or pyloric obstruction. - While it can relieve gastric outlet obstruction, it does not directly address the obstruction in the **proximal duodenum** caused by an **annular pancreas**.

Question 302: The following procedures are recommended for palliation in a patient with obstructive jaundice due to unresectable carcinoma of head of pancreas except:

A. Cholecystojejunostomy with jejunojejunostomy with gastrojejunostomy
B. Hepaticojejunostomy with gastrojejunostomy
C. Choledochoduodenostomy with gastrojejunostomy
D. Choledochoduodenostomy, gastrojejunostomy with pancreaticojejunostomy (Correct Answer)

Explanation: ***Choledochoduodenostomy, gastrojejunostomy with pancreaticojejunostomy*** - **Pancreaticojejunostomy is NOT indicated** in palliative surgery for unresectable pancreatic cancer. - This procedure is used to anastomose the **pancreatic remnant** after **resection** (as in Whipple procedure), not in bypass operations. - Palliation focuses on **relieving biliary and gastric outlet obstruction** without performing pancreatic anastomosis, making this combination inappropriate for palliative care. *Cholecystojejunostomy with jejunojejunostomy with gastrojejunostomy* - **Cholecystojejunostomy** diverts bile flow from the gallbladder to the jejunum, relieving biliary obstruction when the cystic duct is patent. - **Gastrojejunostomy** relieves gastric outlet obstruction, a common complication of pancreatic head cancer. - This represents a valid **triple bypass** palliative approach. *Hepaticojejunostomy with gastrojejunostomy* - **Hepaticojejunostomy** creates a bypass between the common hepatic duct and the jejunum, effectively relieving biliary obstruction. - **Gastrojejunostomy** manages or prevents gastric outlet obstruction. - This **double bypass** is a standard palliative procedure for unresectable pancreatic head cancer. *Choledochoduodenostomy with gastrojejunostomy* - **Choledochoduodenostomy** directly bypasses the biliary obstruction by connecting the common bile duct to the duodenum. - **Gastrojejunostomy** addresses gastric outlet obstruction from duodenal compression by the tumor. - This **double bypass** is another widely accepted palliative approach.

Question 303: The commonest major surgical complication following Whipple procedure is:

A. Disruption of gastric anastomosis
B. Disruption of pancreatic anastomosis (Correct Answer)
C. Biliary peritonitis
D. GI bleeding

Explanation: ***Disruption of pancreatic anastomosis*** - **Pancreatic fistula** resulting from the disruption of the pancreatic anastomosis is the most frequent and most serious complication, occurring in 5-20% of cases. - Leakage of pancreatic fluids can lead to severe **intra-abdominal infection**, hemorrhage, and multi-organ failure. *Disruption of gastric anastomosis* - While possible, leak from the **gastric or duodenal anastomosis** is less common than pancreatic fistula. - This complication typically leads to peritonitis or abscess formation but generally has a lower morbidity compared to pancreatic leaks. *Biliary peritonitis* - **Bile leaks** from the hepaticojejunostomy are less common than pancreatic leaks and generally have a lower risk of severe systemic complications. - They primarily cause **peritonitis** and sometimes require percutaneous drainage or re-operation. *GI bleeding* - Gastrointestinal bleeding can occur post-Whipple, either from the **anastomotic sites**, stress ulcers, or coagulation issues. - While serious, it is typically less common and often more manageable than the sequelae of a pancreatic fistula.

Question 304: A 55-year-old man with a history of heavy alcohol use presents with severe epigastric pain radiating to the back. His lipase is 1,200 U/L (normal <60), and CT shows pancreatic inflammation with peripancreatic fluid collection. On day 3, he develops hypocalcemia (Ca 7.8 mg/dL) and his lactate dehydrogenase is 400 U/L. What is the most likely explanation for these laboratory changes?

A. Fat necrosis and enzymatic calcium consumption (Correct Answer)
B. Acute kidney injury from dehydration
C. Liver dysfunction from alcohol use
D. Sepsis from pancreatic infection

Explanation: ***Fat necrosis and enzymatic calcium consumption*** - In **acute pancreatitis**, activated pancreatic lipases digest peripancreatic fat, releasing **fatty acids** that bind to serum calcium, forming calcium soaps. This process, known as **fat necrosis**, directly consumes calcium and leads to **hypocalcemia**. - The elevated **lactate dehydrogenase (LDH)**, while a general marker of **tissue injury**, also correlates with the severity of pancreatitis and widespread cellular damage, contributing to the overall systemic response that includes electrolyte disturbances like hypocalcemia. *Acute kidney injury from dehydration* - While **dehydration** can occur in acute pancreatitis due to third-spacing of fluids, leading to **AKI**, AKI typically causes **hyperkalemia** and **hyperphosphatemia**, not isolated hypocalcemia. - Though AKI can impair vitamin D activation, this effect on calcium levels would be less immediate and less pronounced than the direct calcium consumption by fat necrosis. *Liver dysfunction from alcohol use* - Chronic **alcohol use** can cause **liver dysfunction**, which might lead to **hypoalbuminemia** (reduced total calcium) or impaired **vitamin D** metabolism. However, the severe, acute onset of hypocalcemia described here is more directly related to the acute pancreatic inflammation. - While liver dysfunction can contribute to various metabolic derangements, it wouldn't alone explain such a significant drop in calcium in the acute setting of pancreatitis, nor the markedly elevated LDH in this context. *Sepsis from pancreatic infection* - **Sepsis** can lead to various electrolyte imbalances, including hypocalcemia, due to systemic inflammation and organ dysfunction. - However, on day 3, while infection is a concern in pancreatitis, the primary and most common explanation for acute hypocalcemia in this scenario is **fat necrosis**, preceding overt sepsis in many cases. The elevated LDH points to widespread tissue destruction rather than solely a septic process at this early stage.

Question 305: A 52-year-old man presents with an 8 cm pancreatic head mass with biliary obstruction. Biopsy shows adenocarcinoma. Staging shows no distant metastases, but the tumor encases the superior mesenteric artery. The oncologist recommends neoadjuvant therapy, the patient wants immediate surgery, and the family requests a second opinion. Evaluate the management approach.

A. Neoadjuvant therapy with vascular surgery consultation (Correct Answer)
B. Immediate Whipple procedure with vascular reconstruction
C. Palliative bypass surgery only
D. Second opinion followed by patient preference

Explanation: ***Neoadjuvant therapy with vascular surgery consultation*** - The presence of **superior mesenteric artery encasement** classifies this tumor as **borderline resectable** pancreatic cancer, making neoadjuvant therapy crucial for downstaging and improving R0 resection rates. - A vascular surgery consultation is essential to assess the feasibility of **vascular reconstruction** after tumor shrinkage and optimize the surgical plan if the patient becomes suitable for resection. *Immediate Whipple procedure with vascular reconstruction* - An **immediate Whipple procedure** is contraindicated in this case due to the **superior mesenteric artery encasement**, which indicates a borderline resectable tumor and a high likelihood of R1 or R2 resection. - Attempting immediate surgery without downstaging would likely lead to an **incomplete resection** and poorer long-term outcomes for the patient. *Palliative bypass surgery only* - This option is inappropriate because the patient does not have distant metastases and the tumor is potentially resectable after **neoadjuvant therapy**. - **Palliative bypass surgery** would only address the biliary obstruction symptomatically, without attempting to cure the cancer or prolong survival. *Second opinion followed by patient preference* - While a second opinion is reasonable, simply following **patient preference** without proper clinical guidance can be detrimental, especially when the patient's preference for immediate surgery goes against established oncologic principles for borderline resectable tumors. - A second opinion should primarily confirm the **neoadjuvant strategy** and clarify the rationale to the patient and family.

Question 306: Carcinoma of pancreas attains largest size when it is sited in -

A. Head
B. Periampullary
C. Body & tail (Correct Answer)
D. Ampulla

Explanation: ***Body & tail*** - Carcinomas in the **body and tail of the pancreas** are often diagnosed at a later stage because they typically do not cause symptoms as early as those in the head of the pancreas. - This delayed diagnosis allows the tumor to grow larger before detection, resulting in a **larger tumor size** at presentation compared to other locations. *Head* - Pancreatic cancers in the **head of the pancreas** often present early with symptoms like **jaundice** (due to biliary obstruction) or weight loss. - Due to these early warning signs, they are usually detected when they are **smaller in size**. *Periampullary* - **Periampullary tumors** are located near the ampulla of Vater and often cause **biliary obstruction** early in their development. - This obstruction leads to symptoms such as **jaundice**, prompting earlier investigation and diagnosis when the tumor is still relatively small. *Ampulla* - Tumors originating directly from the **ampulla of Vater** are often diagnosed at a very early stage because they cause prominent and early symptoms, particularly **obstructive jaundice**. - This early symptomatic presentation leads to their discovery when they are generally the **smallest** among pancreatic or periampullary cancers.

Question 307: A young patient presents with a massive injury to proximal duodenum, head of pancreas and distal common bile duct requiring definitive surgical management. The procedure of choice in this patient should be

A. Pancreaticoduodenectomy (Whipple's operation) (Correct Answer)
B. Lateral tube jejunostomy
C. Roux-en-Y anastomosis
D. Retrograde jejunostomy

Explanation: ***Pancreaticoduodenectomy (Whipple's operation)*** - This procedure involves the **surgical removal** of the head of the pancreas, the duodenum, a portion of the distal stomach, the gallbladder, and the distal common bile duct. - It is the **definitive procedure** for complex injuries involving these organs when damage control measures are not sufficient, as it effectively addresses damage to the **proximal duodenum, head of the pancreas, and distal common bile duct** simultaneously. - In cases of **irreparable combined injuries** to these structures, pancreaticoduodenectomy provides the most comprehensive reconstruction despite being a major operation. - While rarely performed in acute trauma settings due to high morbidity, it remains the **procedure of choice** when definitive management of all three injured structures is required. *Lateral tube jejunostomy* - This is a procedure primarily for **feeding access** or **decompression of the small bowel**, not for definitive management of massive injuries to the pancreas, duodenum, and bile duct. - It does not address the extensive tissue damage or the need for reconstruction of the digestive tract in such a complex injury. - May be used as an **adjunct** but cannot be the primary procedure. *Roux-en-Y anastomosis* - While a **Roux-en-Y reconstruction** is a component of a Whipple procedure, performing only an anastomosis of this type alone would be insufficient to manage the extensive injury described. - It is a method of connecting two structures, but it does not involve the necessary resections or the comprehensive reconstruction required for the damaged organs. - Does not address the **resection** of irreparably damaged tissue. *Retrograde jejunostomy* - **Retrograde jejunostomy** typically refers to a jejunostomy performed in a reverse direction for feeding or decompression purposes. - This procedure, like lateral tube jejunostomy, is used for feeding or decompression and is not a definitive surgical solution for massive organ injury. - It lacks the scope to address the comprehensive damage to the pancreatic head, duodenum, and bile duct.

Question 308: True about pancreatic pseudocysts is:

A. No epithelial lining (Correct Answer)
B. Develops after 4 weeks
C. Contains solid components
D. Always needs surgery

Explanation: ***No epithelial lining*** - A pancreatic pseudocyst is defined by its lack of a true **epithelial lining**, distinguishing it from other cystic lesions of the pancreas. - Instead, its wall is formed by **fibrous and granulation tissue** surrounding a collection of pancreatic enzymes, inflammatory exudates, and necrotic debris. *Develops after 4 weeks* - While many pseudocysts do develop after an acute pancreatitis episode, the 4-week timeline is more specifically associated with the definition of a **pancreatic collection becoming a mature pseudocyst**. - However, pseudocysts can sometimes be observed earlier, and the defining characteristic is the absence of epithelium, not the time of formation. *Contains solid components* - Pancreatic pseudocysts are typically **fluid-filled collections** with a relatively uniform, anechoic appearance on imaging studies. - The presence of significant **solid components** would suggest a different lesion, such as a cystic tumor or a walled-off necrosis, rather than a simple pseudocyst. *Always needs surgery* - Many pancreatic pseudocysts, particularly smaller ones, can **resolve spontaneously** and thus do not always require surgical intervention. - Treatment often depends on size, symptoms, complications, and the duration of the pseudocyst, with conservative management or endoscopic drainage being viable options in many cases.

Question 309: All are true about Whipple procedure except?

A. Used for pancreatic head tumors
B. Spleen is always removed (Correct Answer)
C. Involves pancreaticoduodenectomy
D. Involves reconstruction of GI tract

Explanation: ***Spleen is always removed*** - While the **Whipple procedure** involves the removal of several organs, the **spleen is typically preserved** in most standard Whipple procedures. - Spleen removal is usually reserved for specific cases, such as when the tumor directly invades the spleen or splenic vessels, or in instances of **distal pancreatectomy**, not the standard Whipple. *Used for pancreatic head tumors* - The **Whipple procedure**, also known as **pancreaticoduodenectomy**, is the **definitive surgical treatment** for malignant tumors of the pancreatic head. - It involves removing the head of the pancreas, which is a common site for **pancreatic adenocarcinomas**. *Involves pancreaticoduodenectomy* - **Pancreaticoduodenectomy** is the medical term for the Whipple procedure, as it involves the surgical removal of the head of the pancreas and the duodenum. - Other structures removed include part of the bile duct, gallbladder, and sometimes a portion of the stomach (pylorus-preserving Whipple). *Involves reconstruction of GI tract* - After the extensive resection in a Whipple procedure, the gastrointestinal tract must be **reconstructed** to restore digestive continuity. - This typically involves anastomosing the remaining pancreas, bile duct, and stomach (or duodenum in pylorus-preserving) to the jejunum.

Question 310: A 60-year-old man presents with jaundice and abdominal pain. An ultrasound reveals a pancreatic mass compressing the common bile duct. Further imaging confirms a resectable tumor. Which treatment plan would be the most appropriate for this patient?

A. Endoscopic stent placement for biliary obstruction
B. Surgical resection of the pancreatic mass (Whipple procedure) (Correct Answer)
C. Systemic chemotherapy for tumor control
D. Complete removal of the pancreas (total pancreatectomy)

Explanation: ***Surgical resection of the pancreatic mass (Whipple procedure)*** - The presence of a **pancreatic mass** causing **jaundice** due to common bile duct compression, particularly in a patient who is potentially a surgical candidate, warrants definitive treatment. - The **Whipple procedure (pancreaticoduodenectomy)** is the standard curative treatment for **resectable pancreatic head tumors**, aiming for long-term survival. *Endoscopic stent placement for biliary obstruction* - This is primarily a **palliative measure** to relieve jaundice for patients who are not surgical candidates, or as a temporizing measure before surgery. - It does not address the underlying **pancreatic mass** and is not a curative treatment. *Systemic chemotherapy for tumor control* - **Chemotherapy** is typically used in cases of **unresectable disease**, as **neoadjuvant** therapy before surgery, or as **adjuvant** therapy after surgery to reduce recurrence. - It is not the primary treatment for a potentially resectable mass causing obstructive symptoms where cure is possible. *Complete removal of the pancreas (total pancreatectomy)* - **Total pancreatectomy** is a more extensive and morbid procedure reserved for cases of **multifocal disease**, involvement of the entire gland, or high-risk lesions that cannot otherwise be removed. - It leads to **pancreatic endocrine and exocrine insufficiency**, requiring lifelong insulin and enzyme replacement, and is not the initial choice for a localized mass.

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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