Pancreatic Surgery Practice Questions

Q: Treatment of choice for annular pancreas is

Duodenoduodenostomy. ***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**.

Q: The commonest major surgical complication following Whipple procedure is:

Disruption of pancreatic anastomosis. ***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.

Q: 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.

Neoadjuvant therapy with vascular surgery consultation. ***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.

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

Body & tail. ***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.

Q: True about pancreatic pseudocysts is:

No epithelial lining. ***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.

Q: All are true about Whipple procedure except?

Spleen is always removed. ***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.

Q: 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?

Surgical resection of the pancreatic mass (Whipple procedure). ***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.

Question 1

Treatment of choice for annular pancreas is

Accepted Answer

Duodenoduodenostomy

Answer

Resection

Answer

Pyloromyotomy

Answer

Gastrojejunostomy

Question 2

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

Accepted Answer

Choledochoduodenostomy, gastrojejunostomy with pancreaticojejunostomy

Answer

Cholecystojejunostomy with jejunojejunostomy with gastrojejunostomy

Answer

Hepaticojejunostomy with gastrojejunostomy

Answer

Choledochoduodenostomy with gastrojejunostomy

Question 3

The commonest major surgical complication following Whipple procedure is:

Accepted Answer

Disruption of pancreatic anastomosis

Answer

Disruption of gastric anastomosis

Answer

Biliary peritonitis

Answer

GI bleeding

Question 4

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?

Accepted Answer

Fat necrosis and enzymatic calcium consumption

Answer

Acute kidney injury from dehydration

Answer

Liver dysfunction from alcohol use

Answer

Sepsis from pancreatic infection

Question 5

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.

Accepted Answer

Neoadjuvant therapy with vascular surgery consultation

Answer

Immediate Whipple procedure with vascular reconstruction

Answer

Palliative bypass surgery only

Answer

Second opinion followed by patient preference

Question 6

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

Accepted Answer

Body & tail

Answer

Head

Answer

Periampullary

Answer

Ampulla

Question 7

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

Accepted Answer

Pancreaticoduodenectomy (Whipple's operation)

Answer

Lateral tube jejunostomy

Answer

Roux-en-Y anastomosis

Answer

Retrograde jejunostomy

Question 8

True about pancreatic pseudocysts is:

Accepted Answer

No epithelial lining

Answer

Develops after 4 weeks

Answer

Contains solid components

Answer

Always needs surgery

Question 9

All are true about Whipple procedure except?

Accepted Answer

Spleen is always removed

Answer

Used for pancreatic head tumors

Answer

Involves pancreaticoduodenectomy

Answer

Involves reconstruction of GI tract

Question 10

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?

Accepted Answer

Surgical resection of the pancreatic mass (Whipple procedure)

Answer

Endoscopic stent placement for biliary obstruction

Answer

Systemic chemotherapy for tumor control

Answer

Complete removal of the pancreas (total pancreatectomy)

Pancreatic Surgery — MCQs

Pancreatic Surgery — MCQs

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