Pancreatic Surgery Practice Questions

Q: Which of the following is a poor prognostic factor in a patient with acute pancreatitis?

Leukocytosis > 20,000/mL. In acute pancreatitis, prognosis is determined by the severity of the systemic inflammatory response and organ dysfunction, rather than the magnitude of enzyme elevation. ### **Why Option A is Correct** **Leukocytosis > 20,000/mL** is a recognized indicator of severe inflammation and a poor prognostic marker. It is a key component of the **Ranson Criteria** (measured at admission) and the **Modified Glasgow (Imrie) Score**. A high white cell count reflects a massive systemic inflammatory response syndrome (SIRS), which correlates with an increased risk of pancreatic necrosis, multi-organ failure, and mortality. ### **Why Other Options are Incorrect** * **Options B & C (Serum Amylase and Lipase):** These are diagnostic markers, not prognostic ones. The absolute level of amylase or lipase does **not** correlate with the severity of the disease. A patient with a five-fold increase may have mild interstitial pancreatitis, while a patient with a two-fold increase may have life-threatening hemorrhagic necrosis. * **Option D (Diastolic BP > 90 mm Hg):** Hypertension is not a poor prognostic sign. Conversely, **hypotension** (Systolic BP 200 mg/dL, **A**ge >55 yrs, **L**DH >350 IU/L, **A**ST >250 IU/L, **W**BC >16,000/mm³ (Note: The question uses >20,000, which is even more significant). * **Most sensitive prognostic marker:** C-Reactive Protein (CRP) >150 mg/L at 48 hours. * **Gold standard for assessing severity:** Contrast-Enhanced CT (CECT) performed after 72 hours (Balthazar Scoring). * **BISAP Score:** A simple bedside tool (BUN, Impaired mental status, SIRS, Age >60, Pleural effusion).

Q: Which of the following is true regarding the diagnosis of pancreatitis?

CECT is done after 72 hours.. **Explanation:** The diagnosis and management of acute pancreatitis rely on clinical, biochemical, and radiological criteria. **Why Option B is Correct:** Contrast-Enhanced Computed Tomography (CECT) is the gold standard for assessing the severity of pancreatitis and identifying complications like necrosis. However, it is **not** recommended immediately upon admission. Performing a CECT before **72 hours** of symptom onset often underestimates the extent of pancreatic necrosis, as the inflammatory process takes time to fully manifest radiologically. Waiting 72 hours ensures maximum diagnostic yield for staging severity (e.g., using the Balthazar score). **Why Other Options are Incorrect:** * **Option A:** While serum lipase is more specific and remains elevated longer than amylase, the **investigation of choice** for diagnosis is clinical assessment combined with biochemical markers. For *severity* and *complications*, CECT is the investigation of choice. * **Option C:** According to RANSON’s criteria, a score of **3 or more** (not >2) indicates severe acute pancreatitis. A score of 3x normal, (3) Characteristic findings on imaging. * **Most Specific Marker:** Serum Lipase. * **Early Prognostic Markers:** CRP >150 mg/L at 48 hours is a reliable indicator of severity. * **Atlanta Classification:** Defines "Severe" as the presence of persistent organ failure (>48 hours).

Q: What is true about acute pancreatitis?

CECT is preferred over USG in diagnosis.. **Explanation:** **Why Option C is Correct:** Contrast-Enhanced Computed Tomography (CECT) is the **gold standard** for diagnosing acute pancreatitis and its complications (like necrosis or pseudocysts). While Ultrasound (USG) is the initial screening tool to look for gallstones, it is often limited by overlying bowel gas (ileus) which obscures the pancreas. CECT provides superior anatomical detail, helps in staging severity (Balthazar score), and is essential for identifying pancreatic necrosis. **Analysis of Incorrect Options:** * **Option A:** Globally and in India, **Gallstones** are the most common cause of acute pancreatitis (approx. 40-50%), followed by alcohol. * **Option B:** Most cases (80-85%) are mild and managed conservatively with aggressive fluid resuscitation and analgesia. Only **5-10%** of cases (typically those with infected necrosis or complications) require surgical intervention. * **Option D:** Serum amylase is sensitive but **not specific**. It can be elevated in perforated peptic ulcers, mesenteric ischemia, or ectopic pregnancy. Furthermore, amylase levels do not correlate with the severity of the disease and return to normal within 3-5 days. Serum **Lipase** is considered a more specific and reliable biochemical marker. **Clinical Pearls for NEET-PG:** * **Diagnosis:** Requires 2 out of 3 criteria: (1) Characteristic abdominal pain, (2) Serum amylase/lipase >3x upper limit, (3) Characteristic findings on imaging. * **Timing of CECT:** Ideally performed **72-96 hours** after symptom onset to accurately assess the extent of necrosis. * **Sentinel Loop Sign:** A localized ileus of a jejunal loop seen on X-ray, indicating underlying inflammation. * **Cullen’s/Grey Turner’s signs:** Indicate retroperitoneal hemorrhage and signify severe necrotizing pancreatitis.

Q: A 50-year-old male presented with an epigastric mass and a history of frequent epigastric pain radiating to the back. Records show chronically raised serum amylase and lipase levels. Following USG and CT abdomen studies, which of the following complications may occur if the involved structure ruptures?

Intestinal hemorrhage. ### Explanation **Diagnosis:** The clinical presentation of a chronic epigastric mass, pain radiating to the back, and persistently elevated pancreatic enzymes in a 50-year-old male strongly suggests a **Pancreatic Pseudocyst**. **Why Intestinal Hemorrhage is Correct:** The most dreaded vascular complication of a pancreatic pseudocyst is the formation of a **pseudoaneurysm**. The proteolytic enzymes (especially elastase) within the cyst fluid erode the walls of adjacent major arteries—most commonly the **splenic artery** (followed by the gastroduodenal and pancreaticoduodenal arteries). If this pseudoaneurysm ruptures into the pseudocyst, it converts into a "hemosuccus pancreaticus." If the cyst then ruptures into the GI tract (stomach or duodenum), it results in massive, life-threatening **intestinal hemorrhage**. **Why Other Options are Incorrect:** * **A. Carcinomatosis:** This is associated with the seeding of malignant cells (e.g., ovarian or gastric cancer). A pseudocyst is a benign inflammatory collection. * **C. Disseminated infection:** While a pseudocyst can become infected (forming a pancreatic abscess), rupture typically leads to pancreatic ascites or peritonitis rather than immediate systemic dissemination. * **D. Anaphylactic shock:** This is the classic complication of a ruptured **Hydatid cyst** (Echinococcus), not a pancreatic pseudocyst. **High-Yield Clinical Pearls for NEET-PG:** * **Definition:** A pseudocyst lacks an epithelial lining (lined by granulation tissue); it usually forms 4–6 weeks after an episode of acute pancreatitis. * **Most common site of pseudoaneurysm:** Splenic artery. * **Indications for surgery:** Size >6 cm, persistence >6 weeks, or complications (infection, hemorrhage, or gastric outlet obstruction). * **Treatment of choice for pseudoaneurysm:** Angiographic embolization (if stable) or surgical ligation.

Q: A symptomatic patient has a 7 cm pancreatic cyst. What is the treatment of choice for this patient?

Internal drainage. **Explanation:** The management of a pancreatic cyst depends on its size, symptoms, and etiology (pseudocyst vs. cystic neoplasm). In this clinical scenario, the patient has a **symptomatic, large (7 cm) pancreatic cyst**, which most commonly refers to a **pancreatic pseudocyst** in the context of surgical exams. **Why Internal Drainage is Correct:** For pseudocysts larger than 6 cm or those that are symptomatic/persistent, intervention is required. **Internal drainage** is the treatment of choice because it allows the cyst fluid to drain into the gastrointestinal tract, preventing external fluid loss and electrolyte imbalance. Common procedures include **Cystogastrostomy** (most common), Cystoduodenostomy, or Roux-en-Y Cystojejunostomy. It is performed only after the cyst wall has "matured" (usually 6 weeks), ensuring it can hold sutures. **Why Other Options are Incorrect:** * **External Drainage:** This is generally avoided as it carries a high risk of forming a **pancreaticocutaneous fistula**. It is reserved only for infected pseudocysts with unstable hemodynamics or thin-walled cysts that cannot hold sutures. * **Resection of Head of Pancreas:** This (e.g., Whipple’s procedure) is an over-treatment for a simple pseudocyst. Resection is reserved for suspected **cystic neoplasms** (like MCN or IPMN) or cysts located in the tail (distal pancreatectomy). * **Antibiotics:** While useful if a cyst becomes infected (pancreatic abscess), antibiotics alone will not resolve a 7 cm structural collection. **High-Yield Clinical Pearls for NEET-PG:** * **Rule of 6:** Many pseudocysts <6 cm or <6 weeks old resolve spontaneously with conservative management. * **Maturity:** Internal drainage requires a mature cyst wall (takes ~6 weeks). * **Gold Standard:** Endoscopic ultrasound (EUS)-guided internal drainage is now preferred over open surgery when anatomically feasible.

Q: What is the investigation of choice for a pancreatic islet cell tumor?

Nuclear scan. **Explanation:** The investigation of choice for pancreatic islet cell tumors (Neuroendocrine Tumors - NETs) is a **Nuclear Scan**, specifically **Somatostatin Receptor Scintigraphy (SRS)** or the more modern **68Ga-DOTATATE PET/CT**. **Why Nuclear Scan is Correct:** Most pancreatic islet cell tumors (like gastrinomas, glucagonomas, and somatostatinomas) overexpress **Somatostatin Receptors (SSTR)**, particularly subtype 2. Nuclear imaging uses radiolabeled somatostatin analogs (e.g., Octreotide or DOTATATE) that bind specifically to these receptors. This provides high sensitivity for detecting both the primary tumor and occult metastatic disease, which anatomical imaging often misses. **Why Other Options are Incorrect:** * **CT Scan (A) & MRI (B):** While multiphasic (triple-phase) CT and MRI are excellent for localization and assessing resectability, they are **anatomical** studies. They may fail to detect small tumors (<1 cm) or differentiate them from non-functional nodules. * **USG (D):** Transabdominal ultrasound has very low sensitivity for the pancreas due to overlying bowel gas and the small size of these tumors. (Note: *Endoscopic* Ultrasound is highly sensitive but is invasive and usually secondary to non-invasive imaging). **High-Yield Clinical Pearls for NEET-PG:** 1. **The Exception:** **Insulinomas** are often SSTR-negative. Therefore, the investigation of choice for localizing an insulinoma is **Endoscopic Ultrasound (EUS)** or **Selective Arterial Calcium Stimulation Test (SACST)** if non-invasive imaging is negative. 2. **Gastrinoma Triangle:** Most gastrinomas are found in the area bounded by the junction of the cystic/common duct, the 2nd/3rd part of the duodenum, and the neck/body of the pancreas. 3. **Gold Standard for Metastasis:** 68Ga-DOTATATE PET/CT is now considered superior to the older 111In-Pentetreotide (OctreoScan).

Q: Pain relief in chronic pancreatitis can be obtained by destruction of which of the following structures?

Celiac ganglia. **Explanation:** The pain in chronic pancreatitis is primarily mediated by visceral afferent fibers that travel alongside sympathetic nerves. These fibers pass through the **celiac plexus (and celiac ganglia)** before reaching the spinal cord (T5–T9 levels). **1. Why Celiac Ganglia is Correct:** The celiac ganglia are the largest prevertebral ganglia and serve as the primary relay station for nociceptive (pain) signals from the upper abdominal viscera, including the pancreas. **Celiac Plexus Block (CPB)** or neurolysis (using alcohol or phenol) is a standard palliative procedure to interrupt these pain pathways in patients with chronic pancreatitis or pancreatic cancer who are refractory to medical management. **2. Why Incorrect Options are Wrong:** * **Vagus Nerve:** The vagus nerve carries parasympathetic fibers responsible for secretomotor functions and some sensory feedback, but it does not carry the somatic or visceral pain fibers from the pancreas. * **Anterolateral Column:** While the spinothalamic tract (located in the anterolateral column) does transmit pain to the brain, its surgical destruction (cordotomy) is a radical neurosurgical procedure rarely used for localized visceral pain like pancreatitis and carries significant risks of motor and sensory deficits. **Clinical Pearls for NEET-PG:** * **Anatomical Landmark:** The celiac plexus is located at the level of the **L1 vertebra**, surrounding the root of the celiac trunk and superior mesenteric artery. * **EUS-Guided Block:** Endoscopic Ultrasound (EUS)-guided celiac plexus neurolysis is currently the preferred technique due to its high precision and lower complication rate. * **Surgical Alternative:** For intractable pain in chronic pancreatitis with a dilated duct, the **Puestow procedure** (Lateral Pancreaticojejunostomy) is the surgical treatment of choice.

Question 1

Which of the following is a poor prognostic factor in a patient with acute pancreatitis?

Accepted Answer

Leukocytosis > 20,000/mL

Answer

Serum amylase

Answer

Serum lipase

Answer

Diastolic BP > 90 mm Hg

Question 2

A 60-year-old female presents with a history of recurrent abdominal pain. Imaging shows multiple small cystic lesions resembling a bunch of grapes in the head of the pancreas, along with a grossly dilated main pancreatic duct. What is the most likely diagnosis?

Accepted Answer

Intraductal Papillary Mucinous Neoplasm

Answer

Serous Cystadenoma

Answer

Mucinous Cystadenoma

Answer

Pancreatic pseudocyst

Question 3

An infected pancreatic necrosis is treated with?

Accepted Answer

Laparotomy and surgical debridement

Answer

IV Antibiotics

Answer

Ultrasound guided drainage

Answer

Total parenteral nutrition (TPN)

Question 4

Which of the following is true regarding the diagnosis of pancreatitis?

Accepted Answer

CECT is done after 72 hours.

Answer

Serum lipase is the investigation of choice.

Answer

RANSON’s score of more than 2 indicates acute severe pancreatitis.

Answer

All of the above.

Question 5

What is true about acute pancreatitis?

Accepted Answer

CECT is preferred over USG in diagnosis.

Answer

Alcohol is the most common cause.

Answer

20-25% of cases require surgical treatment.

Answer

Serum amylase is diagnostic.

Question 6

A 50-year-old male presented with an epigastric mass and a history of frequent epigastric pain radiating to the back. Records show chronically raised serum amylase and lipase levels. Following USG and CT abdomen studies, which of the following complications may occur if the involved structure ruptures?

Accepted Answer

Intestinal hemorrhage

Answer

Carcinomatosis

Answer

Disseminated infection

Answer

Anaphylactic shock

Question 7

A symptomatic patient has a 7 cm pancreatic cyst. What is the treatment of choice for this patient?

Accepted Answer

Internal drainage

Answer

External drainage

Answer

Resection of head of pancreas

Answer

Antibiotics

Question 8

What is the investigation of choice for a pancreatic islet cell tumor?

Accepted Answer

Nuclear scan

Answer

CT scan

Answer

MRI

Answer

USG

Question 9

Pain relief in chronic pancreatitis can be obtained by destruction of which of the following structures?

Accepted Answer

Celiac ganglia

Answer

Vagus nerve

Answer

Anterolateral column of the spinal cord

Answer

None of the above

Question 10

A 47-year-old executive consults his physician with complaints of feeling tired and several months of abdominal pain and "dark-colored" urine. Physical examination reveals slight jaundice and a palpable, non-tender gallbladder. Which of the following disorders is most likely, given this presentation?

Accepted Answer

Pancreatic cancer

Answer

Acute cholecystitis

Answer

Amyloidosis

Answer

Hepatic cirrhosis

Pancreatic Surgery — MCQs

Pancreatic Surgery — MCQs

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