Pancreatic Surgery Practice Questions

Q: Areas of peripancreatic fluid seen within the first 4 weeks after the onset of interstitial oedematous pancreatitis is called:

Acute Peripancreatic fluid collection. This question tests your knowledge of the **Revised Atlanta Classification (2012)**, which is the gold standard for defining complications of acute pancreatitis. ### **1. Why Option A is Correct** The classification of pancreatic collections depends on two factors: **Type of pancreatitis** (Oedematous vs. Necrotizing) and **Duration** (Before vs. After 4 weeks). * **Acute Peripancreatic Fluid Collection (APFC):** Occurs in interstitial oedematous pancreatitis within the first 4 weeks. It lacks a defined wall and is confined by normal fascial planes. Most APFCs resolve spontaneously without intervention. ### **2. Why Other Options are Incorrect** * **B. Pseudocyst:** This is a collection of pancreatic juice enclosed by a wall of granulation tissue. It only occurs **after 4 weeks** of interstitial oedematous pancreatitis. * **C. WOPN (Walled-off Pancreatic Necrosis):** This occurs in **necrotizing pancreatitis** (not oedematous) and takes at least **4 weeks** to develop a mature wall. * **D. Abscess:** This is an outdated term. The current terminology uses "Infected Necrosis" or "Infected Pseudocyst." An abscess implies a localized collection of pus, which usually occurs late in the disease course. ### **3. High-Yield Clinical Pearls for NEET-PG** * **The 4-Week Rule:** 4 weeks is the magic number for "walling off" to occur. * **Oedematous Pancreatitis:** Leads to APFC ( 4 weeks). * **Necrotizing Pancreatitis:** Leads to Acute Necrotic Collection (ANC, 4 weeks). * **Management:** Most APFCs and asymptomatic pseudocysts are managed conservatively. Intervention (Drainage/Necrosectomy) is generally delayed until the collection is "walled off" (after 4 weeks).

Q: A 53-year-old male with a history of heavy alcoholism presents with a 12-hour history of sharp central abdominal pain and vomiting. He prefers to sit up rather than lie flat, as the pain increases when lying down. On examination, he has mild jaundice, a temperature of 38.3°C, a pulse of 132/min, and a blood pressure of 118/82 mm Hg. There is periumbilical discoloration and maximal tenderness in the epigastrium. What is the most likely diagnosis?

Acute pancreatitis. **Explanation:** The clinical presentation is classic for **Acute Pancreatitis**. The patient’s history of heavy alcohol consumption is a major risk factor. The "sharp central abdominal pain" that is relieved by sitting up or leaning forward (the **"tripod position"**) is a hallmark sign, as lying flat allows the inflamed pancreas to compress against the retroperitoneum. The presence of **periumbilical discoloration (Cullen’s sign)** indicates retroperitoneal hemorrhage tracking along the falciform ligament, a sign of necrotizing or severe pancreatitis. Tachycardia and fever further suggest a systemic inflammatory response. **Why the other options are incorrect:** * **Pyelonephritis:** Typically presents with flank pain (loin to groin), high-grade fever with rigors, and costovertebral angle tenderness, rather than periumbilical bruising or relief upon sitting forward. * **Acute Viral Hepatitis:** While it causes jaundice and epigastric/RUQ discomfort, it does not present with acute severe "sharp" pain, periumbilical ecchymosis, or the specific postural relief seen here. * **Perforated Duodenal Ulcer:** This presents with sudden-onset "board-like" abdominal rigidity. While it causes epigastric pain, the patient would typically lie perfectly still (as any movement exacerbates peritonitis), rather than shifting to a sitting position. **NEET-PG High-Yield Pearls:** * **Cullen’s Sign:** Periumbilical bruising (seen here). * **Grey Turner’s Sign:** Flank bruising (indicates retroperitoneal hemorrhage). * **Fox’s Sign:** Bruising over the inguinal ligament. * **Diagnosis:** Requires 2 of 3: (1) Characteristic abdominal pain, (2) Serum amylase/lipase >3x normal, (3) Characteristic findings on CT/MRI. * **Most common cause:** Gallstones (Global/Overall), Alcohol (in males).

Q: All of the following are true about gastrinoma except?

Most common site is the pancreas. ### Explanation **Gastrinoma (Zollinger-Ellison Syndrome)** is a neuroendocrine tumor characterized by hypergastrinemia and refractory peptic ulcer disease. **Why Option C is the Correct Answer (The False Statement):** Historically, gastrinomas were thought to be primarily pancreatic. However, current evidence confirms that the **most common site for gastrinomas is the duodenum** (specifically the first and second parts), accounting for 60–90% of cases. Pancreatic gastrinomas are less common and are often larger and more likely to be malignant compared to duodenal ones. **Analysis of Other Options:** * **Option A:** The **Gastrinoma Triangle (Triangle of Passaro)** is defined by the junction of the cystic and common bile duct, the junction of the 2nd and 3rd parts of the duodenum, and the neck/body of the pancreas. Over 90% of gastrinomas are found here. * **Option B:** A **Basal Acid Output (BAO) >15 mEq/hour** (or >5 mEq/hour in patients with previous gastric surgery) is a classic diagnostic criterion for ZES. * **Option D:** While surgical resection is the mainstay for sporadic cases, extensive **lymphadenectomy** in gastrinoma surgery is controversial. Current surgical consensus suggests that while lymph nodes are often involved, aggressive lymphadenectomy does not significantly improve long-term survival compared to simple excision of the primary tumor. **NEET-PG High-Yield Pearls:** * **Most common location:** Duodenum (specifically the "Gastrinoma Triangle"). * **Association:** 25% are associated with **MEN-1 syndrome** (these are often multiple and harder to cure). * **Best Screening Test:** Fasting Serum Gastrin (>1000 pg/mL is diagnostic). * **Best Provocative Test:** Secretin Stimulation Test (positive if gastrin rises >200 pg/mL). * **Localization:** Somatostatin Receptor Scintigraphy (Octreoscan) or Endoscopic Ultrasound (EUS).

Q: All of the following statements are true for insulinoma except?

Most insulinomas are multiple.. **Explanation:** Insulinomas are the most common functional neuroendocrine tumors (NETs) of the pancreas. Understanding their clinical behavior is crucial for NEET-PG. **1. Why Option B is the Correct Answer (The False Statement):** The vast majority of insulinomas (**90%**) are **solitary** (single) lesions. Multiple insulinomas are rare (approx. 10%) and are strongly associated with **MEN-1 syndrome** (Multiple Endocrine Neoplasia Type 1). Therefore, the statement that "most are multiple" is incorrect. **2. Analysis of Other Options:** * **Option A:** Insulinomas are indeed the **most common** functional pancreatic endocrine neoplasms, followed by gastrinomas. * **Option C:** Approximately **90% of insulinomas are benign**. Only about 5-10% show malignant behavior (defined by local invasion or distant metastasis). * **Option D:** Histologically, insulinomas often show **amyloid deposition** (derived from islet amyloid polypeptide/amylin), which is a characteristic pathological feature. **Clinical Pearls for NEET-PG:** * **Whipple’s Triad:** Essential for diagnosis—(1) Symptoms of hypoglycemia during fasting, (2) Low blood glucose (<50 mg/dL), (3) Relief of symptoms after glucose administration. * **Rule of 90s:** 90% are solitary, 90% are benign, 90% are <2 cm in size, and 90% are intrapancreatic. * **Localization:** Most are distributed equally across the head, body, and tail of the pancreas. **Endoscopic Ultrasound (EUS)** is the most sensitive preoperative localization study. * **Treatment:** Surgical enucleation is the treatment of choice for small, benign lesions.

Q: All of the following can be used to predict severe acute pancreatitis EXCEPT:

C-reactive protein < 100 mg/L. To predict the severity of acute pancreatitis, clinicians use various scoring systems and biochemical markers. Severe acute pancreatitis is defined by persistent organ failure or local complications (necrosis, abscess). ### **Explanation of the Correct Answer** **D. C-reactive protein 150 mg/L** at 48 hours is a highly sensitive predictor of severe pancreatitis and pancreatic necrosis. A value below 100 mg/L suggests the absence of significant systemic inflammation. ### **Analysis of Incorrect Options** * **A. Glasgow score 3:** The Glasgow (Imrie) score uses 8 parameters. A score of **≥ 3** within the first 48 hours indicates severe pancreatitis. * **B. APACHE II score 9:** The APACHE II score is a comprehensive physiological assessment. A score of **≥ 8** is the traditional cutoff used to predict severe disease and increased mortality. * **C. CT severity score 6:** The Balthazar CT Severity Index (CTSI) combines peripancreatic inflammation and the degree of necrosis. A score of **7–10** indicates severe disease, but any score **≥ 6** is clinically significant and associated with a higher risk of complications. ### **High-Yield Clinical Pearls for NEET-PG** * **Ranson’s Criteria:** Evaluated at admission and 48 hours. A score **≥ 3** predicts severity. * **BISAP Score:** (BUN, Impaired mental status, SIRS, Age > 60, Pleural effusion). A score **≥ 3** is a strong predictor of mortality. * **Gold Standard Imaging:** Contrast-Enhanced CT (CECT) is the best tool to assess necrosis, ideally performed **72–96 hours** after symptom onset. * **Early Marker:** Urinary Trypsinogen Activation Peptide (TAP) is an early research marker for severity.

Q: All are true about gastrinoma except:

90% are benign. **Explanation:** The correct answer is **C (90% are benign)** because this statement is factually incorrect. In reality, approximately **60–90% of gastrinomas are malignant**, often presenting with metastasis to regional lymph nodes or the liver at the time of diagnosis. Unlike insulinomas (which are 90% benign), gastrinomas are considered high-grade neuroendocrine tumors. **Analysis of other options:** * **Option A (Located mostly in pancreas):** While gastrinomas are frequently found in the duodenum (the most common site in MEN-1), the pancreas remains a primary location within the **"Gastrinoma Triangle"** (Passaro’s Triangle). * **Option B (Unusual ulcer location):** Gastrinomas cause Zollinger-Ellison Syndrome (ZES). While most ulcers occur in the first part of the duodenum, ulcers in the **distal duodenum or jejunum** are highly suggestive of gastrinoma. * **Option D (Hypersecretion of gastric acid):** This is the hallmark of the disease. Gastrin hypersecretion leads to massive parietal cell hyperplasia and excessive acid output, causing refractory peptic ulcers and secretory diarrhea. **High-Yield Clinical Pearls for NEET-PG:** * **Gastrinoma Triangle (Passaro’s):** Junction of cystic/common bile duct, junction of 2nd/3rd part of duodenum, and neck/body of pancreas. * **MEN-1 Association:** 25% of gastrinomas are associated with Multiple Endocrine Neoplasia Type 1 (3Ps: Parathyroid, Pancreas, Pituitary). * **Diagnosis:** Best initial test is **Fasting Serum Gastrin (>1000 pg/mL)**. The most sensitive provocative test is the **Secretin Stimulation Test** (gastrin rises >200 pg/mL). * **Localization:** **Somatostatin Receptor Scintigraphy (SRS)** or Gallium-68 DOTATATE PET/CT are the preferred imaging modalities.

Question 1

Which of the following features favors pancreatic adenocarcinoma over non-functioning pancreatic neuroendocrine tumors (NF PET)?

Accepted Answer

Presence of calcifications

Answer

Tumor size <5cm

Answer

Negative chromogranin A

Answer

Negative somatostatin receptor scintigraphy

Question 2

Areas of peripancreatic fluid seen within the first 4 weeks after the onset of interstitial oedematous pancreatitis is called:

Accepted Answer

Acute Peripancreatic fluid collection

Answer

Pseudocyst

Answer

WOPN

Answer

Abscess

Question 3

A 53-year-old male with a history of heavy alcoholism presents with a 12-hour history of sharp central abdominal pain and vomiting. He prefers to sit up rather than lie flat, as the pain increases when lying down. On examination, he has mild jaundice, a temperature of 38.3°C, a pulse of 132/min, and a blood pressure of 118/82 mm Hg. There is periumbilical discoloration and maximal tenderness in the epigastrium. What is the most likely diagnosis?

Accepted Answer

Acute pancreatitis

Answer

Pyelonephritis

Answer

Acute viral hepatitis

Answer

Perforated duodenal ulcer

Question 4

All of the following are true about gastrinoma except?

Accepted Answer

Most common site is the pancreas

Answer

Mostly found in the triangle of Passaro

Answer

Basal acid output >15 mEq/hour is diagnostic

Answer

Lymphadenectomy is not required as there is no improvement in survival

Question 5

All of the following statements are true for insulinoma except?

Accepted Answer

Most insulinomas are multiple.

Answer

These are the most common pancreatic endocrine neoplasms.

Answer

These are benign.

Answer

Deposition of amyloid is characteristic.

Question 6

Which of the following is NOT a serious complication of a pancreatic pseudocyst?

Accepted Answer

Calcification in the cyst wall

Answer

Intracystic hemorrhage

Answer

Secondary infection

Answer

Rupture of the cyst

Question 7

A 42-year-old man presents with bleeding from esophageal varices. Investigations reveal occlusion of the portal vein without evidence of liver cirrhosis. Which test is most likely to reveal an underlying predisposing factor for this condition?

Accepted Answer

Coagulation tests to include antithrombin III

Answer

Hepatitis screening

Answer

Iso-amylase

Answer

Intravenous pyelogram to exclude hydronephrosis

Question 8

All of the following can be used to predict severe acute pancreatitis EXCEPT:

Accepted Answer

C-reactive protein < 100 mg/L

Answer

Glasgow score 3

Answer

APACHE II score 9

Answer

CT severity score 6

Question 9

All are true about gastrinoma except:

Accepted Answer

90% are benign

Answer

Located mostly in the pancreas

Answer

Associated with unusual ulcer location

Answer

Associated with hypersecretion of gastric acid

Question 10

What is the most common location for pancreatic pseudocysts?

Accepted Answer

Body

Answer

Head

Answer

Neck

Answer

Outside the pancreas

Pancreatic Surgery — MCQs

Pancreatic Surgery — MCQs

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