Pancreatic Surgery — MCQs

A 43-year-old man with chronic hepatitis and liver cirrhosis is admitted with upper GI bleeding. He has marked ascites and shows multiple telangiectasias, liver palmar erythema, and clubbing. A diagnosis of bleeding esophageal varices secondary to portal hypertension is made. Portal pressure is considered elevated when it is above which of the following values?

Q285Medium

What is true about pseudocyst of pancreas?

Q286Easy

What is the most common type of pancreatic tumor?

Q287Medium

Which of the following statements about annular pancreas is false?

Q288Medium

Which of the following is NOT included in the treatment of acute pancreatitis?

Q289Medium

A 66-year-old man presents with obstructive jaundice and is found on ERCP to have periampullary carcinoma. He is otherwise in excellent physical condition with no evidence of metastasis. What is the most appropriate treatment?

Q290Medium

Which tumor is commonly seen in the area marked below?

Pancreatic Surgery Indian Medical PG Practice Questions and MCQs

Question 281: Vascular complications of acute pancreatitis include the following except?

A. Splenic vein thrombosis
B. Splenic artery aneurysm
C. Gastroduodenal artery aneurysm
D. Middle colic artery thrombosis (Correct Answer)

Explanation: **Explanation:** Vascular complications in acute pancreatitis occur due to the release of proteolytic and elastolytic enzymes (like trypsin and elastase) which cause autodigestion of vessel walls, leading to erosion, hemorrhage, or thrombosis. **1. Why Middle Colic Artery Thrombosis is the Correct Answer:** The middle colic artery is a branch of the Superior Mesenteric Artery (SMA) that supplies the transverse colon. While acute pancreatitis can cause colonic ischemia or necrosis due to the spread of enzymes through the transverse mesocolon, **isolated thrombosis of the middle colic artery** is not a recognized or standard vascular complication of the disease. Vascular damage in pancreatitis typically affects vessels in immediate proximity to the pancreas. **2. Analysis of Incorrect Options:** * **Splenic Vein Thrombosis (SVT):** This is the **most common** vascular complication. The splenic vein runs directly behind the body and tail of the pancreas. Inflammation leads to "left-sided" or "sinusoidal" portal hypertension, often resulting in isolated gastric varices. * **Splenic Artery Aneurysm (Pseudoaneurysm):** The splenic artery is the **most common artery** affected by pseudoaneurysm formation in pancreatitis. Enzymatic erosion of the arterial wall leads to a weakened wall that dilates. * **Gastroduodenal Artery (GDA) Aneurysm:** The GDA runs near the head of the pancreas. It is the **second most common** site for pseudoaneurysm formation after the splenic artery. **High-Yield Clinical Pearls for NEET-PG:** * **Most common vessel involved in thrombosis:** Splenic Vein. * **Most common vessel involved in pseudoaneurysm:** Splenic Artery. * **Clinical Presentation:** A sudden drop in hemoglobin or a sentinel bleed into the GI tract (via the pancreatic duct, known as *Hemosuccus Pancreaticus*) in a patient with a history of pancreatitis should raise suspicion of a pseudoaneurysm. * **Management:** The gold standard for diagnosing and treating visceral pseudoaneurysms is **Angiography with Embolization.**

Question 282: Which of the following is NOT a component of the Ranson score?

A. Amylase
B. Lipase
C. ALT
D. None of the above (Correct Answer)

Explanation: The **Ranson Criteria** is a clinical prediction rule used to predict the severity and mortality of acute pancreatitis. It assesses parameters at two time points: **at admission** and **at 48 hours**. ### **Why the Correct Answer is "None of the above"** The Ranson score is notorious in surgical exams for what it **excludes**. Despite being the gold standard biomarkers for diagnosing pancreatitis, **Serum Amylase and Serum Lipase are NOT components of the Ranson score.** Additionally, while Liver Function Tests (LFTs) are often checked, **ALT** is not a criteria (though AST is). Since none of the options (Amylase, Lipase, or ALT) are part of the scoring system, "None of the above" is the correct choice. ### **Analysis of Options** * **Amylase & Lipase (Options A & B):** These levels correlate with the diagnosis but **do not** correlate with the severity or prognosis of the disease. Therefore, they are excluded from Ranson, APACHE II, and Glasgow-Imrie scores. * **ALT (Option C):** The Ranson score includes **AST (SGOT) >250 U/L** at admission. ALT is not used in the scoring. ### **High-Yield Clinical Pearls for NEET-PG** To memorize the Ranson Criteria, use the mnemonics: **At Admission (GA LAW):** 1. **G**lucose >200 mg/dL 2. **A**ge >55 years 3. **L**DH >350 IU/L 4. **A**ST >250 U/L 5. **W**BC count >16,000/mm³ **At 48 Hours (C HOBBS):** 1. **C**alcium <8 mg/dL 2. **H**ematocrit fall >10% 3. **O**xygen (PaO₂) <60 mmHg 4. **B**UN increase >5 mg/dL 5. **B**ase deficit >4 mEq/L 6. **S**equestration of fluid >6 L **Note:** A score of **≥3** indicates severe pancreatitis; a score of **≥6** indicates a mortality rate of approximately 50%.

Question 283: All are true about neuroendocrine tumors of the pancreas except:

A. Insulinoma is the most common type.
B. Vasoactive intestinal peptide (VIP) causes diarrhea.
C. Diarrhea is the most common symptom of gastrinoma. (Correct Answer)
D. Somatostatinoma causes gallstone formation.

Explanation: **Explanation:** The correct answer is **C** because it is a false statement. While diarrhea occurs in about 30–50% of patients with **Gastrinoma (Zollinger-Ellison Syndrome)**, the **most common clinical presentation is refractory peptic ulcer disease (PUD)**. Diarrhea in gastrinoma is caused by massive gastric acid secretion inactivating pancreatic enzymes and damaging the intestinal mucosa, but it is rarely the solitary or primary symptom. **Analysis of other options:** * **Option A:** **Insulinoma** is indeed the most common functional pancreatic neuroendocrine tumor (pNET). It typically presents with Whipple’s triad (hypoglycemic symptoms, low blood glucose, and relief upon glucose administration). * **Option B:** **VIPoma (Verner-Morrison Syndrome)** classically causes **WDHA syndrome**: Watery Diarrhea, Hypokalemia, and Achlorhydria (also known as "pancreatic cholera"). * **Option D:** **Somatostatinoma** inhibits the release of cholecystokinin (CCK) and impairs gallbladder contractility, leading to bile stasis and **gallstone formation**. It is also associated with the triad of diabetes, steatorrhea, and cholelithiasis. **High-Yield Clinical Pearls for NEET-PG:** * **Rule of 10s for Insulinoma:** 10% are malignant, 10% are multiple, and 10% are associated with MEN-1. * **Gastrinoma Triangle (Passaro’s Triangle):** Junction of cystic/common bile duct, junction of 2nd/3rd part of duodenum, and neck/body of pancreas. Most gastrinomas are found here. * **Glucagonoma:** Look for **Necrolytic Migratory Erythema (NME)**, weight loss, and diabetes. * **MEN-1 Association:** pNETs (especially Gastrinomas and Insulinomas) are frequently associated with Multiple Endocrine Neoplasia Type 1 (3Ps: Parathyroid, Pancreas, Pituitary).

Question 284: A 43-year-old man with chronic hepatitis and liver cirrhosis is admitted with upper GI bleeding. He has marked ascites and shows multiple telangiectasias, liver palmar erythema, and clubbing. A diagnosis of bleeding esophageal varices secondary to portal hypertension is made. Portal pressure is considered elevated when it is above which of the following values?

A. 0.15 mm Hg
B. 1.5 mm Hg
C. 12 mm Hg (Correct Answer)
D. 40 mm Hg

Explanation: **Explanation:** The correct answer is **12 mm Hg**. Portal hypertension is defined by an increase in the pressure within the portal venous system. Clinically, this is measured using the **Hepatic Venous Pressure Gradient (HVPG)**, which is the difference between the wedged hepatic venous pressure and the free hepatic venous pressure. 1. **Why 12 mm Hg is correct:** Normal portal pressure ranges between **5–10 mm Hg**. Portal hypertension is technically present when the HVPG exceeds **5 mm Hg**. However, the "threshold" for clinical significance is higher. A gradient of **≥10 mm Hg** indicates clinically significant portal hypertension (risk of developing varices), but a pressure of **≥12 mm Hg** is the critical threshold required for **variceal hemorrhage** to occur. Since the patient in the question is presenting with active bleeding, 12 mm Hg is the most appropriate diagnostic value. 2. **Why incorrect options are wrong:** * **0.15 and 1.5 mm Hg (A & B):** These values are far below normal physiological portal pressures and have no clinical relevance in the context of hypertension. * **40 mm Hg (D):** While portal pressures can rise significantly in severe cirrhosis, 40 mm Hg is an extreme value and not the diagnostic threshold for the onset of portal hypertension or bleeding risk. **High-Yield Clinical Pearls for NEET-PG:** * **Normal HVPG:** 1–5 mm Hg. * **Pre-primary prophylaxis:** Indicated when HVPG >10 mm Hg (to prevent varices). * **Bleeding Risk:** Occurs only when HVPG >12 mm Hg. * **TIPS Goal:** The aim of a Transjugular Intrahepatic Portosystemic Shunt (TIPS) is to reduce the HVPG to **<12 mm Hg** to prevent re-bleeding. * **Triad of Portal HTN:** Splenomegaly, Ascites, and Varices.

Question 285: What is true about pseudocyst of pancreas?

A. It is a true cyst.
B. It is common with penetrating trauma to the abdomen.
C. It is treated with cystogastrostomy if the size is greater than 2 cm.
D. It can present from the mediastinum to the pubis. (Correct Answer)

Explanation: ### Explanation **1. Why Option D is Correct:** A pancreatic pseudocyst is a collection of pancreatic juice encapsulated by a wall of fibrous or granulation tissue. Because it lacks a fixed anatomical boundary and follows the path of least resistance along fascial planes, the fluid can dissect into various compartments. It most commonly occupies the lesser sac but can extend superiorly into the **mediastinum** (through the esophageal or aortic hiatus) or inferiorly into the **pararenal space, psoas muscle, and even the pelvis/pubis.** **2. Why Other Options are Incorrect:** * **Option A:** It is called a "pseudo" cyst because it **lacks an epithelial lining**. True cysts (like congenital or neoplastic cysts) are lined by epithelium. * **Option B:** Pseudocysts are most commonly a complication of **chronic pancreatitis** or **blunt abdominal trauma** (especially in children). Penetrating trauma usually results in fistulas or acute hemorrhage rather than contained pseudocysts. * **Option C:** Small, asymptomatic cysts often resolve spontaneously. Intervention (like cystogastrostomy) is generally indicated only if the cyst is **symptomatic** (pain, gastric outlet obstruction) or complicated (infection, hemorrhage). The traditional "6 cm/6 weeks" rule is now outdated; size alone is not an absolute indication for surgery. **Clinical Pearls for NEET-PG:** * **Timeframe:** Usually takes **4–6 weeks** to form a mature wall (required for internal drainage). * **Most common location:** Lesser sac (behind the stomach). * **Investigation of choice:** Contrast-Enhanced CT (CECT). * **Most common complication:** Infection (turning it into a pancreatic abscess). * **Biochemical marker:** High amylase levels in the cyst fluid.

Question 286: What is the most common type of pancreatic tumor?

A. Ductal adenocarcinoma (Correct Answer)
B. Cystadenoma
C. Insulinoma
D. Non-islet cell tumor

Explanation: **Explanation:** **Ductal adenocarcinoma** is the correct answer because it accounts for approximately **85–90% of all pancreatic neoplasms**. It originates from the exocrine part of the pancreas, specifically the ductal epithelium. It most commonly occurs in the head of the pancreas (65–70%) and is notorious for its aggressive nature, early metastasis, and poor prognosis. **Analysis of Incorrect Options:** * **B. Cystadenoma:** These are cystic neoplasms (e.g., Serous or Mucinous). While they are important differential diagnoses for pancreatic masses, they are significantly rarer than solid ductal adenocarcinomas. * **C. Insulinoma:** This is the most common **functional** Neuroendocrine Tumor (NET) of the pancreas. However, overall, NETs represent only about 1–2% of all pancreatic tumors. * **D. Non-islet cell tumor:** This is a broad category that can include various mesenchymal tumors (like lymphomas or sarcomas), which are extremely rare primary findings in the pancreas compared to epithelial ductal tumors. **High-Yield Clinical Pearls for NEET-PG:** * **Risk Factors:** Smoking (strongest environmental factor), chronic pancreatitis, obesity, and long-standing Diabetes Mellitus. * **Clinical Triad:** Obstructive jaundice (if in the head), weight loss, and deep-seated abdominal/back pain. * **Courvoisier’s Law:** In a patient with painless obstructive jaundice, a palpable gallbladder is likely due to a malignancy (like pancreatic head CA) rather than gallstones. * **Tumor Marker:** **CA 19-9** (used for monitoring response to treatment, not for screening). * **Imaging:** Contrast-Enhanced CT (CECT) is the gold standard for diagnosis and staging (look for the "Double Duct Sign").

Question 287: Which of the following statements about annular pancreas is false?

A. Associated with Down syndrome
B. Presents with bilious vomiting (Correct Answer)
C. Treatment involves duodeno-duodenostomy
D. Diagnosis is made by ERCP

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 behind the duodenum. 1. **Why Option B is False (The Correct Answer):** In an annular pancreas, the obstruction occurs at the **second part of the duodenum**, typically **proximal (above)** to the Ampulla of Vater. Therefore, the gastric secretions cannot pass, but they are not mixed with bile. This results in **non-bilious vomiting**. If the obstruction were distal to the ampulla, the vomiting would be bilious. 2. **Analysis of Other Options:** * **Option A:** Annular pancreas is strongly associated with **Down Syndrome (Trisomy 21)**, along with other GI anomalies like duodenal atresia. * **Option C:** The surgical treatment of choice is a bypass procedure, most commonly **duodeno-duodenostomy** (Diamond-shaped anastomosis). Direct resection of the pancreatic ring is avoided due to the high risk of pancreatic fistulas and the fact that the underlying duodenum is often stenotic. * **Option D:** While ultrasound or X-ray (Double Bubble sign) are initial steps, **ERCP** (in adults) or MRCP is the gold standard for confirming the anatomy of the pancreatic duct encircling the duodenum. **Clinical Pearls for NEET-PG:** * **Embryology:** Failure of rotation of the **bifid ventral pancreatic bud**. * **Radiology:** Classic "Double Bubble Sign" on abdominal X-ray (gas in stomach and proximal duodenum). * **Adult Presentation:** While often pediatric, adults may present with peptic ulcers or chronic pancreatitis. * **Key Association:** Most common cause of duodenal obstruction in Down Syndrome patients after duodenal atresia.

Question 288: Which of the following is NOT included in the treatment of acute pancreatitis?

A. Calcium supplementation
B. Enteral feeding via nasogastric tube
C. Cholestyramine administration
D. None of the above (Correct Answer)

Explanation: The correct answer is **D. None of the above**, because all the listed interventions (A, B, and C) can be integral components of managing acute pancreatitis or its specific underlying causes. [1] ### **Explanation of Options:** * **A. Calcium supplementation:** Hypocalcemia is a common complication of severe acute pancreatitis due to "saponification" (calcium binding to necrotic fat). While mild hypocalcemia is often monitored, symptomatic or severe hypocalcemia requires intravenous calcium gluconate to prevent tetany and cardiac arrhythmias. [1] * **B. Enteral feeding via nasogastric tube:** Modern guidelines emphasize early enteral nutrition (within 24–72 hours) over parenteral nutrition. Nasogastric (NG) feeding is as safe and effective as nasojejunal (NJ) feeding. It maintains the gut mucosal barrier, preventing bacterial translocation and reducing the risk of infected pancreatic necrosis. * **C. Cholestyramine administration:** This is used specifically in cases of **Biliary Pancreatitis** or pancreatitis associated with severe hypercholesterolemia. Cholestyramine is a bile acid sequestrant that can help manage pruritus or lipid-related issues in specific subsets of patients. [2] ### **High-Yield Clinical Pearls for NEET-PG:** 1. **Fluid Resuscitation:** Aggressive hydration with **Ringer’s Lactate** is the most critical initial step in the first 24 hours. [1] 2. **Nutrition:** "Gut rest" is outdated for severe cases; enteral feeding is preferred to prevent sepsis. 3. **Antibiotics:** Prophylactic antibiotics are **not** recommended; they are only indicated if there is evidence of infected necrosis (gas on CT or positive FNA). [1] 4. **Surgical Intervention:** The "Step-up approach" (minimally invasive drainage before necrosectomy) is the standard of care for infected necrosis. [1] 5. **Prognostic Markers:** **Ranson’s Criteria** and **APACHE II** are classic, but **C-Reactive Protein (CRP) >150 mg/L** at 48 hours is a high-yield predictor of severity.

Question 289: A 66-year-old man presents with obstructive jaundice and is found on ERCP to have periampullary carcinoma. He is otherwise in excellent physical condition with no evidence of metastasis. What is the most appropriate treatment?

A. Radical excision (Whipple procedure) where feasible (Correct Answer)
B. Local excision and radiotherapy
C. External radiotherapy
D. Internal radiation seeds via catheter

Explanation: **Explanation:** The patient presents with **periampullary carcinoma**, a term encompassing tumors arising within 2 cm of the ampulla of Vater (including the head of the pancreas, distal common bile duct, ampulla, and duodenum). **1. Why Option A is Correct:** For localized periampullary carcinoma in a patient with a good performance status and no distant metastasis, **surgical resection** offers the only chance for a long-term cure. The standard procedure is the **Pancreaticoduodenectomy (Whipple procedure)**. This involves the radical excision of the pancreatic head, duodenum, gallbladder, distal CBD, and sometimes the gastric antrum. Because these tumors often present early with obstructive jaundice, they have a higher resectability rate and a better prognosis compared to tumors in the body or tail of the pancreas. **2. Why Other Options are Incorrect:** * **Option B:** Local excision is inadequate for malignancy as it fails to address regional lymph node spread and has high recurrence rates. Radiotherapy alone is not curative. * **Options C & D:** External or internal radiation are primarily used as **palliative measures** or as part of neoadjuvant/adjuvant protocols. They cannot replace surgery in a fit patient with resectable disease. **Clinical Pearls for NEET-PG:** * **Most common periampullary tumor:** Pancreatic head carcinoma (but Ampullary CA has the best prognosis). * **Double Duct Sign:** Dilatation of both the CBD and the Pancreatic duct, often seen on imaging in these cases. * **Courvoisier’s Law:** In a patient with obstructive jaundice, if the gallbladder is palpable, the obstruction is unlikely to be due to stones (suggests malignancy). * **Whipple’s Triad** is for Insulinoma; do not confuse it with the **Whipple Procedure**.

Question 290: Which tumor is commonly seen in the area marked below?

A. Insulinoma
B. Gastrinoma (Correct Answer)
C. Non-functional tumors
D. VIPoma

Explanation: ### Explanation The question refers to the **Gastrinoma Triangle** (also known as **Passaro’s Triangle**), a critical anatomical landmark for localizing gastrinomas. **1. Why Gastrinoma is Correct:** The Gastrinoma Triangle is defined by three points: * **Superiorly:** Junction of the cystic and common bile duct. * **Inferiorly:** Junction of the 2nd and 3rd portions of the duodenum. * **Medially:** Junction of the neck and body of the pancreas. Approximately **80–90% of gastrinomas** (Zollinger-Ellison Syndrome) are found within this area. While they can occur in the pancreas, the majority are actually found in the **duodenal wall**. **2. Why Other Options are Incorrect:** * **Insulinoma:** These are the most common functional pancreatic neuroendocrine tumors (pNETs). Unlike gastrinomas, they are distributed **evenly** throughout the head, body, and tail of the pancreas and are rarely extrapancreatic. * **Non-functional tumors:** These are typically found in the **head or tail** of the pancreas but do not have a predilection for the Gastrinoma Triangle specifically. * **VIPoma:** These rare tumors (causing Verner-Morrison syndrome) are most commonly located in the **tail** of the pancreas. **3. NEET-PG High-Yield Pearls:** * **Zollinger-Ellison Syndrome (ZES):** Characterized by refractory peptic ulcers, diarrhea, and gastric acid hypersecretion. * **Rule of 1/3rds for Gastrinomas:** 1/3 are associated with **MEN-1** syndrome; 1/3 are metastatic at diagnosis; 1/3 are multiple. * **Localization:** The most sensitive imaging for localization is **Somatostatin Receptor Scintigraphy (Octreoscan)** or **Endoscopic Ultrasound (EUS)**. * **Surgery:** Enucleation is preferred for small tumors, while Whipple’s procedure may be required for large tumors in the head/duodenum.

Practice by Chapter

Pancreatic Anatomy and Physiology

Practice Questions

Acute Pancreatitis

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Chronic Pancreatitis

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Pancreatic Pseudocysts

Practice Questions

Pancreatic Adenocarcinoma

Practice Questions

Cystic Neoplasms of Pancreas

Practice Questions

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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