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PGIM CSE Surgical Specialties study materials
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PGIM CSE Surgical Specialties practice questions

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Question 1General and Gastrointestinal Surgery

A 24-year-old man develops right lower quadrant pain that migrates from the periumbilical region over 12 hours, with anorexia and low-grade fever. Which embryologic feature best explains the initial periumbilical pain of acute appendicitis?

  1. Visceral afferent fibers of the midgut entering the spinal cord at T10 Correct answer.
  2. Sympathetic fibers from the lumbar splanchnic nerves
  3. Somatic innervation of the parietal peritoneum by the lower thoracic nerves
  4. Referred pain from irritation of the right phrenic nerve

Explanation

The appendix derives from the midgut, whose visceral afferent pain fibers follow the superior mesenteric plexus and enter the spinal cord around T10, the dermatome of the umbilicus. This produces poorly localized periumbilical pain early in the illness. Once inflammation reaches the parietal peritoneum, pain localizes to the right lower quadrant.

Question 2General and Gastrointestinal Surgery

A 58-year-old woman has a 2 cm distal rectal adenocarcinoma 4 cm above the anal verge with no distant metastases. Which operative approach is most appropriate for achieving oncologic clearance while preserving the anal sphincter?

  1. Low anterior resection with total mesorectal excision Correct answer.
  2. Hartmann procedure with end colostomy
  3. Local transanal excision alone
  4. Abdominoperineal resection with permanent end colostomy

Explanation

Tumors in the upper and mid rectum with adequate distal margin can be managed by low anterior resection with total mesorectal excision, which removes the mesorectum intact and preserves the sphincter. A 4 cm margin from the anal verge generally permits a stapled colorectal or coloanal anastomosis. Total mesorectal excision is the oncologic standard because it reduces local recurrence.

Question 3General and Gastrointestinal Surgery

A 45-year-old man presents with hematemesis and melena. Endoscopy shows a bleeding visible vessel in a duodenal ulcer that has been injected and clipped. Which pharmacologic measure most reduces the risk of rebleeding after endoscopic hemostasis?

  1. Intravenous octreotide infusion
  2. Intravenous proton pump inhibitor infusion Correct answer.
  3. Oral sucralfate suspension
  4. Intravenous tranexamic acid

Explanation

High-dose intravenous proton pump inhibitor therapy raises intragastric pH above 6, stabilizing the platelet plug at the ulcer base and reducing rebleeding after successful endoscopic therapy. It is the standard adjunct following endoscopic hemostasis of a high-risk peptic ulcer. Octreotide is used for variceal hemorrhage, not ulcer bleeding.

Question 4General and Gastrointestinal Surgery

A 70-year-old woman has a 3 cm uncomplicated sigmoid diverticulitis without abscess or perforation and is hemodynamically stable. Which management is most appropriate?

  1. Outpatient oral antibiotics with a clear liquid diet and clinical follow-up Correct answer.
  2. Intravenous antibiotics with urgent Hartmann procedure
  3. Percutaneous drainage of the sigmoid colon
  4. Emergent sigmoid colectomy with primary anastomosis

Explanation

Uncomplicated acute diverticulitis without systemic toxicity or abscess is managed conservatively with bowel rest and, in many protocols, oral antibiotics, with reassessment. Most episodes resolve without surgery. Operative intervention is reserved for perforation, abscess, fistula, obstruction, or failure of medical therapy.

Question 5General and Gastrointestinal Surgery

A 62-year-old man with a 5 cm abdominal aortic aneurysm develops sudden severe abdominal and back pain with hypotension. At laparotomy, which finding most strongly indicates a ruptured aneurysm rather than a contained leak?

  1. Free intraperitoneal blood with a noncontained aortic defect Correct answer.
  2. A pulsatile mass with a palpable thrill
  3. Retroperitoneal hematoma confined to the left paracolic gutter
  4. Atherosclerotic plaque within the aneurysm sac

Explanation

A ruptured abdominal aortic aneurysm that has breached the retroperitoneum presents with free intraperitoneal blood and a noncontained aortic defect, producing rapid exsanguination. A contained leak remains confined to the retroperitoneum and may present with pain but less hemodynamic collapse. Free intraperitoneal rupture is the most immediately life-threatening pattern.

Question 6General and Gastrointestinal Surgery

A 35-year-old woman has a 1.5 cm solitary thyroid nodule with indeterminate cytology. Which preoperative study is most useful for evaluating the functional status of the nodule before surgery?

  1. Radioactive iodine uptake scan Correct answer.
  2. Serum thyroglobulin level
  3. Serum calcitonin level
  4. Neck computed tomography with contrast

Explanation

A radioactive iodine uptake scan distinguishes a hyperfunctioning hot nodule, which is rarely malignant, from a cold nodule that warrants further evaluation. It guides the decision for surgery and the extent of resection. Thyroglobulin is used in postoperative surveillance of differentiated thyroid cancer, not initial nodule evaluation.

Question 7General and Gastrointestinal Surgery

A 50-year-old man undergoes inguinal hernia repair. Which structure lies immediately posterior to the spermatic cord at the deep inguinal ring and is at risk during dissection?

  1. Inferior epigastric vessels
  2. Femoral vein
  3. External iliac vein Correct answer.
  4. Ilioinguinal nerve

Explanation

The deep inguinal ring lies lateral to the inferior epigastric vessels, and the external iliac vein lies immediately posterior and medial to the ring, making it vulnerable during deep dissection or mesh fixation. Injury can cause significant hemorrhage. Recognizing this relationship is essential during laparoscopic and open hernia repair.

Question 8General and Gastrointestinal Surgery

A 28-year-old man has a 4 cm right-sided indirect inguinal hernia. Which repair technique places mesh in the preperitoneal space through a posterior approach?

  1. Lichtenstein tension-free repair
  2. Bassini repair
  3. Shouldice repair
  4. Totally extraperitoneal laparoscopic repair Correct answer.

Explanation

The totally extraperitoneal approach develops the preperitoneal space and places mesh posterior to the transversalis fascia, covering the myopectineal orifice. This posterior mesh position addresses indirect, direct, and femoral defects. The Lichtenstein repair places mesh anteriorly in the inguinal canal.

Question 9General and Gastrointestinal Surgery

A 66-year-old man has painless jaundice and a palpable distended gallbladder (Courvoisier sign) with a distal common bile duct stricture on imaging. Which diagnosis is most likely?

  1. Gallstone impaction at the cystic duct
  2. Acute cholecystitis
  3. Primary sclerosing cholangitis
  4. Pancreatic head adenocarcinoma Correct answer.

Explanation

A palpable, nontender distended gallbladder with painless obstructive jaundice suggests malignant biliary obstruction, most commonly pancreatic head adenocarcinoma. The tumor obstructs the distal common bile duct gradually, allowing the gallbladder to dilate without inflammation. Gallstone disease typically produces a nonpalpable or tender gallbladder.

Question 10General and Gastrointestinal Surgery

A 55-year-old woman develops fever, tachycardia, and abdominal pain 5 days after a left colectomy. Computed tomography shows an anastomotic leak with a localized fluid collection. Which initial step is most appropriate?

  1. Percutaneous image-guided drainage with intravenous antibiotics Correct answer.
  2. Observation with serial abdominal examinations only
  3. Immediate reoperation with anastomotic takedown and end colostomy
  4. Endoscopic stenting of the anastomosis without drainage

Explanation

A localized anastomotic leak with a contained collection in a stable patient is initially managed by image-guided percutaneous drainage and intravenous antibiotics. This controls the source and allows the anastomosis to heal in many cases. Operative takedown is reserved for generalized peritonitis, hemodynamic instability, or failed drainage.

Question 11General and Gastrointestinal Surgery

A 40-year-old woman has a 2 cm insulinoma in the pancreatic body. Which anatomic relationship most influences the feasibility of enucleation?

  1. Size of the splenic vein
  2. Distance of the tumor from the main pancreatic duct Correct answer.
  3. Presence of the gastroduodenal artery anterior to the neck
  4. Length of the main pancreatic duct

Explanation

Enucleation of a pancreatic neuroendocrine tumor is considered when the lesion is at least 2 to 3 mm from the main pancreatic duct; a closer distance risks ductal injury, fistula, and stricture. Tumors abutting the duct are better treated by formal resection. Ductal proximity therefore determines the operative strategy.

Question 12General and Gastrointestinal Surgery

A 32-year-old woman has a 6 cm simple hepatic cyst that is asymptomatic. Which management is most appropriate?

  1. Laparoscopic deroofing
  2. Percutaneous aspiration with sclerotherapy
  3. Observation without intervention Correct answer.
  4. Formal hepatic resection

Explanation

Asymptomatic simple hepatic cysts are benign and require no treatment; intervention is reserved for symptoms such as pain, early satiety, or complications. Aspiration alone has a high recurrence rate, and deroofing is used only for symptomatic cysts. Resection is reserved for unusual or malignant lesions.

Question 13General and Gastrointestinal Surgery

A 48-year-old man with cirrhosis and a 3 cm hepatocellular carcinoma confined to the right lobe has preserved liver function. Which factor most strongly determines whether he can undergo resection rather than transplantation?

  1. Serum alpha-fetoprotein level
  2. Absence of clinically significant portal hypertension and adequate future liver remnant Correct answer.
  3. Presence of a single lesion
  4. Tumor capsule appearance on imaging

Explanation

Resection candidacy in cirrhosis depends chiefly on functional liver reserve: clinically significant portal hypertension and an inadequate future liver remnant predict postoperative liver failure. Patients with well-preserved function and sufficient remnant can undergo resection. Those with portal hypertension are generally considered for transplantation.

Question 14General and Gastrointestinal Surgery

A 60-year-old man has a 2 cm gastric antral adenocarcinoma without evidence of nodal or distant spread on staging. Which operation offers the best chance of cure?

  1. Endoscopic submucosal dissection
  2. Proximal gastrectomy with splenectomy
  3. Subtotal gastrectomy with D2 lymphadenectomy Correct answer.
  4. Wedge resection of the antrum

Explanation

Localized gastric adenocarcinoma is treated with gastrectomy plus D2 lymphadenectomy to clear regional nodes and achieve an R0 margin. Subtotal gastrectomy is appropriate for distal tumors with adequate proximal margin. Endoscopic resection is limited to early lesions meeting strict criteria.

Question 15General and Gastrointestinal Surgery

A 30-year-old man has a 3 cm duodenal ulcer with a posterior wall crater. Which complication is most likely due to erosion into an adjacent structure?

  1. Perforation into the peritoneal cavity
  2. Hemorrhage from the gastroduodenal artery Correct answer.
  3. Gastric outlet obstruction
  4. Fistula to the transverse colon

Explanation

Posterior duodenal ulcers erode into the gastroduodenal artery, causing major hemorrhage. The gastroduodenal artery lies directly behind the first part of the duodenum, making it the classic vessel involved. Anterior ulcers more often perforate freely into the peritoneum.

Question 16General and Gastrointestinal Surgery

A 72-year-old man with atrial fibrillation on warfarin presents with small bowel obstruction and signs of strangulation. Which finding most strongly suggests strangulation rather than simple obstruction?

  1. Fever, tachycardia, and localized peritoneal signs with elevated lactate Correct answer.
  2. Metabolic alkalosis from vomiting
  3. Multiple air-fluid levels on abdominal radiograph
  4. Dilated bowel loops with a paucity of gas

Explanation

Strangulation is suggested by systemic toxicity, tachycardia, fever, localized peritoneal signs, and rising lactate reflecting ischemic bowel. These features mandate urgent operative exploration. Simple obstruction typically presents with colicky pain and vomiting without systemic inflammation.

Question 17General and Gastrointestinal Surgery

A 45-year-old woman has a 2 cm nonfunctioning pancreatic neuroendocrine tumor in the tail with no evidence of metastasis. Which procedure is most appropriate?

  1. Total pancreatectomy
  2. Pancreaticoduodenectomy
  3. Enucleation of the tumor
  4. Distal pancreatectomy with splenectomy Correct answer.

Explanation

Tumors in the pancreatic tail are best treated by distal pancreatectomy, often with splenectomy for oncologic clearance, especially when the tumor abuts the splenic vessels. This achieves adequate margins and regional node sampling. Enucleation is reserved for small, low-grade lesions away from the duct.

Question 18General and Gastrointestinal Surgery

A 25-year-old man has a stab wound to the left flank with stable vital signs. Which finding is the strongest indication for immediate exploratory laparotomy?

  1. Evisceration of omentum through the wound Correct answer.
  2. A single episode of vomiting
  3. Local wound tenderness
  4. Mild leukocytosis

Explanation

Evisceration through an abdominal stab wound is a clear indication for operative exploration because it implies violation of the peritoneal cavity with risk of organ injury. Hemodynamic instability, peritonitis, and evisceration are classic operative triggers. Stable patients without these findings may undergo selective nonoperative management.

Question 19General and Gastrointestinal Surgery

A 68-year-old woman has a 1.2 cm T1b colon cancer resected endoscopically with unfavorable histology including lymphovascular invasion. Which management is most appropriate?

  1. Segmental colectomy with lymphadenectomy Correct answer.
  2. Observation with repeat colonoscopy in 1 year
  3. Endoscopic re-resection with a wider margin
  4. Adjuvant chemotherapy alone

Explanation

A T1b colon cancer with unfavorable features such as lymphovascular invasion carries a significant risk of nodal metastasis that cannot be addressed by endoscopic resection. Segmental colectomy with lymphadenectomy provides staging and oncologic clearance. Endoscopic re-resection does not remove regional nodes.

Question 20General and Gastrointestinal Surgery

A 55-year-old man has a 6 cm abdominal aortic aneurysm and is being evaluated for elective repair. Which factor most strongly favors endovascular over open repair?

  1. Ruptured aneurysm with hemodynamic instability
  2. Presence of a horseshoe kidney
  3. Younger patient age
  4. Favorable aortic neck anatomy and significant cardiopulmonary comorbidity Correct answer.

Explanation

Endovascular aneurysm repair is preferred when aortic neck anatomy is suitable and the patient has substantial cardiopulmonary comorbidity that would make open repair high risk. It offers lower perioperative morbidity and mortality. Anatomic suitability is a prerequisite for endovascular repair.

Question 21General and Gastrointestinal Surgery

A 50-year-old man has a 2 cm duodenal neuroendocrine tumor with a solitary liver metastasis. Which finding most strongly indicates that combined resection of the primary and hepatic metastasis should be considered?

  1. The liver metastasis is confined to one lobe and can be completely resected Correct answer.
  2. The patient has carcinoid syndrome
  3. The primary tumor is nonfunctioning
  4. The liver metastasis is discovered incidentally

Explanation

Combined resection of a midgut or duodenal neuroendocrine tumor and limited hepatic metastases is considered when complete resection of all visible disease is feasible, which offers the best chance of prolonged survival. Bilobar or unresectable disease is generally managed with systemic therapy or debulking. Completeness of resection is the key criterion.

Question 22General and Gastrointestinal Surgery

A 60-year-old woman has a 4 cm hepatocellular carcinoma in a noncirrhotic liver with no extrahepatic disease. Which treatment offers the best chance of long-term cure?

  1. Radiofrequency ablation alone
  2. Systemic sorafenib
  3. Surgical resection Correct answer.
  4. Transarterial chemoembolization

Explanation

In a noncirrhotic liver with preserved function, surgical resection offers the best chance of cure for a solitary hepatocellular carcinoma without extrahepatic spread. Resection provides complete tumor removal and histologic margins. Ablation is an alternative for small tumors in patients who are not surgical candidates.

Question 23General and Gastrointestinal Surgery

A 35-year-old woman has a 3 cm insulinoma and undergoes enucleation. Which intraoperative finding most increases the risk of postoperative pancreatic fistula?

  1. Tumor located in the pancreatic head
  2. Tumor within 2 mm of the main pancreatic duct Correct answer.
  3. Tumor measuring 1 cm
  4. Tumor with a fibrous capsule

Explanation

Enucleation close to the main pancreatic duct risks ductal injury, leading to postoperative pancreatic fistula and stricture. A distance of at least 2 to 3 mm is generally required to attempt enucleation safely. Tumors abutting the duct should be treated by formal resection.

Question 24General and Gastrointestinal Surgery

A 45-year-old man has a 2 cm gastric gastrointestinal stromal tumor with no evidence of metastasis. Which margin status is generally adequate for curative resection?

  1. A 5 cm proximal and distal margin
  2. A microscopically negative margin Correct answer.
  3. No margin assessment is necessary
  4. A margin requiring total gastrectomy

Explanation

Gastrointestinal stromal tumors spread hematogenously rather than via lymphatics, so a microscopically negative margin (R0) is adequate and extensive margins are unnecessary. Routine lymphadenectomy is not indicated. Preservation of organ function is a key goal of resection.

Question 25General and Gastrointestinal Surgery

A 70-year-old man with a large incarcerated inguinal hernia presents with vomiting and a tender irreducible mass. Which initial maneuver is most appropriate before operative repair?

  1. Application of a truss and outpatient follow-up
  2. Trial of gentle taxis with analgesia and preparation for urgent surgery Correct answer.
  3. Emergent laparotomy without attempting reduction
  4. Vigorous manual reduction followed by elective repair

Explanation

Incarcerated hernia without signs of strangulation may be managed with gentle taxis after analgesia and muscle relaxation, followed by urgent repair to prevent recurrence. Vigorous reduction risks reducing ischemic bowel into the abdomen. If taxis fails or strangulation is suspected, emergent surgery is required.

Question 26General and Gastrointestinal Surgery

A 58-year-old man has a 2 cm well-differentiated rectal neuroendocrine tumor confined to the submucosa, with no lymphovascular invasion and clear margins after endoscopic resection. Which feature of this lesion most strongly predicts an excellent long-term prognosis?

  1. Submucosal invasion depth with clear deep margin
  2. Tumor size below 1 cm with Ki-67 index under 3%
  3. Well-differentiated histology alone regardless of size
  4. Absence of lymphovascular invasion and low mitotic rate Correct answer.

Explanation

For rectal neuroendocrine tumors, the combination of absent lymphovascular invasion and a low mitotic rate (typically under 2 per 10 high-power fields) identifies lesions with negligible metastatic risk and excellent prognosis. Size and depth matter, but the strongest independent predictor of benign behavior is the proliferative and vascular invasion profile. Well-differentiated histology alone is insufficient because grade must be quantified.

Question 27General and Gastrointestinal Surgery

A 45-year-old woman is scheduled for elective laparoscopic cholecystectomy for symptomatic gallstones. Preoperative imaging shows a 6 mm common bile duct with no stones and normal liver enzymes. Which structure is most at risk of injury during dissection of the hepatocystic triangle (Calot triangle)?

  1. Right hepatic artery
  2. Cystic artery Correct answer.
  3. Common hepatic duct
  4. Right branch of the portal vein

Explanation

The cystic artery is the principal structure encountered and divided within the hepatocystic triangle during cholecystectomy, and failure to identify it clearly is a common source of bleeding. The right hepatic artery can lie close by and is at risk when the triangle is misdissected, but the cystic artery is the structure routinely ligated. The common hepatic duct and portal vein branches are not normally within the triangle.

Question 28General and Gastrointestinal Surgery

A 62-year-old man undergoes an open right hemicolectomy with ileocolic anastomosis. On postoperative day 5 he develops tachycardia, low-grade fever, and diffuse abdominal tenderness with a rising white count. Which complication of intestinal anastomosis is most consistent with this presentation?

  1. Anastomotic leak with intra-abdominal sepsis Correct answer.
  2. Adhesive small bowel obstruction
  3. Wound dehiscence
  4. Postoperative ileus

Explanation

A colorectal or ileocolic anastomotic leak typically presents around days 3 to 7 with tachycardia, fever, abdominal tenderness, and leukocytosis, reflecting intra-abdominal contamination. Adhesive obstruction and ileus cause distension and vomiting without the systemic inflammatory picture. Wound dehiscence presents with fascial separation rather than diffuse peritonitis.

Question 29General and Gastrointestinal Surgery

A 70-year-old woman has a 3 cm adenocarcinoma of the pancreatic head with no vascular involvement and no distant metastases. She is jaundiced with a bilirubin of 12 mg/dL and has cholangitis. Which management sequence is most appropriate?

  1. Immediate pancreaticoduodenectomy without biliary drainage
  2. Neoadjuvant chemoradiation before any biliary drainage
  3. Biliary drainage followed by pancreaticoduodenectomy after resolution of cholangitis Correct answer.
  4. Palliative gastrojejunostomy alone

Explanation

Acute cholangitis in a jaundiced patient with a resectable pancreatic head tumor requires urgent biliary decompression, typically by endoscopic stenting, followed by surgery once sepsis resolves. Operating during active cholangitis markedly increases morbidity. Neoadjuvant therapy is considered for borderline or locally advanced disease, and palliative bypass alone undertreats resectable disease.

Question 30General and Gastrointestinal Surgery

A 55-year-old man has a 5 cm gastrointestinal stromal tumor of the gastric body with no metastases and a mitotic rate of 3 per 50 high-power fields. After complete R0 resection, which factor most strongly determines the need for adjuvant imatinib?

  1. Tumor location within the stomach
  2. Presence of peritumoral inflammation
  3. Patient age at diagnosis
  4. Tumor size and mitotic rate combined Correct answer.

Explanation

Adjuvant imatinib for resected gastric GIST is guided by recurrence risk estimated from tumor size and mitotic rate, often using the modified NIH or Miettinen risk stratification. A 5 cm tumor with 3 mitoses per 50 high-power fields falls into an intermediate-risk category where adjuvant therapy may be considered. Age, gastric location, and peritumoral inflammation are not validated determinants of adjuvant treatment.

Question 31Hepatobiliary and Pancreatic Surgery

A 58-year-old man has a 2.5 cm gallbladder polyp on ultrasound with no gallstones and no symptoms. Which single feature most strongly indicates the polyp requires cholecystectomy rather than observation?

  1. A fixed, sessile morphology with a broad base on ultrasound
  2. Detection in a patient with a family history of gallstones
  3. A diameter of 2.5 cm in a patient with no biliary symptoms Correct answer.
  4. Presence of a comet-tail artifact within the lesion

Explanation

Polyp size is the strongest predictor of malignancy, and lesions of 10 mm or more are generally an indication for cholecystectomy because the risk of cancer rises substantially. A 2.5 cm polyp therefore warrants resection even in an asymptomatic patient without stones. Morphology and artifact help characterize lesions but do not outweigh size in the decision to operate.

Question 32Hepatobiliary and Pancreatic Surgery

Which structure most commonly forms the anterior boundary of the epiploic foramen (foramen of Winslow)?

  1. The first part of the duodenum
  2. The inferior vena cava posteriorly
  3. The caudate lobe of the liver
  4. The hepatoduodenal ligament containing the portal triad Correct answer.

Explanation

The epiploic foramen is bounded anteriorly by the free edge of the lesser omentum, the hepatoduodenal ligament, which contains the portal vein, hepatic artery, and common bile duct. The inferior vena cava and caudate lobe form the posterior boundary. Recognizing these relations is essential when dissecting the porta hepatis.

Question 33Hepatobiliary and Pancreatic Surgery

A 45-year-old woman has recurrent right upper quadrant pain after fatty meals with ultrasound showing gallstones and a common bile duct of 5 mm. Liver enzymes and bilirubin are normal. What is the most appropriate management?

  1. Endoscopic retrograde cholangiopancreatography with sphincterotomy
  2. Laparoscopic cholecystectomy Correct answer.
  3. Observation with repeat ultrasound in six months
  4. Percutaneous cholecystostomy

Explanation

Symptomatic cholelithiasis with a normal-caliber duct and normal liver chemistry is managed by laparoscopic cholecystectomy. The duct is not dilated and there is no biochemical evidence of obstruction, so preoperative duct clearance is unnecessary. Delay risks recurrent biliary colic and complications such as cholecystitis or pancreatitis.

Question 34Hepatobiliary and Pancreatic Surgery

Which tumor marker is most useful in the postoperative surveillance of a patient resected for pancreatic ductal adenocarcinoma?

  1. Alpha-fetoprotein
  2. CA 19-9 Correct answer.
  3. Carcinoembryonic antigen
  4. CA 125

Explanation

CA 19-9 is the marker most widely used to follow patients after resection of pancreatic ductal adenocarcinoma, since a falling level supports response and a rising level may herald recurrence. It lacks screening value because of poor sensitivity in early disease and elevation in benign cholestasis. Other markers listed are not associated with pancreatic cancer.

Question 35Hepatobiliary and Pancreatic Surgery

A patient develops fever, tachycardia, and right upper quadrant tenderness 48 hours after an uneventful laparoscopic cholecystectomy. Ultrasound shows a fluid collection in the gallbladder fossa. Which complication is most likely?

  1. Bile leak from the cystic duct stump or liver bed Correct answer.
  2. Retained common bile duct stone
  3. Portal vein thrombosis
  4. Postoperative pancreatitis

Explanation

Early fever with a pericholecystic fluid collection after cholecystectomy most often reflects a bile leak, typically from the cystic duct stump or accessory ducts in the liver bed. Bilious drain output or rising bilirubin supports the diagnosis, and ERCP or HIDA scanning can confirm it. Retained stones and pancreatitis usually present with pain and enzyme or bilirubin derangement rather than a localized collection.

Question 36Hepatobiliary and Pancreatic Surgery

Which of the following best describes the blood supply of the common bile duct?

  1. Direct supply from the left gastric artery only
  2. A longitudinal plexus supplied mainly by branches of the right hepatic and gastroduodenal arteries Correct answer.
  3. A single axial artery arising from the gastroduodenal artery
  4. Exclusive supply from the middle hepatic artery

Explanation

The common bile duct receives a longitudinal network of small axial vessels derived chiefly from the right hepatic artery and the gastroduodenal artery, running at the 3 and 9 o'clock positions. This tenuous plexus explains the risk of ischemic stricture after extensive duct mobilization. Careful dissection preserves these fine vessels during biliary surgery.

Question 37Hepatobiliary and Pancreatic Surgery

A 62-year-old man with obstructive jaundice has a pancreatic head mass on CT with no vascular involvement and no distant metastases. Serum bilirubin is 18 mg/dL and he has cholangitis with fever. What is the most appropriate initial step?

  1. Immediate pancreaticoduodenectomy
  2. Percutaneous liver biopsy of the mass
  3. Palliative chemotherapy alone
  4. Biliary drainage followed by staging and resection Correct answer.

Explanation

Acute cholangitis in a jaundiced patient with a resectable pancreatic head mass should first be treated with biliary decompression, usually by ERCP stenting, along with antibiotics. Resection is then undertaken once sepsis resolves and staging is complete. Operating on a septic, deeply jaundiced patient increases morbidity and mortality.

Question 38Hepatobiliary and Pancreatic Surgery

Which finding on magnetic resonance cholangiopancreatography is most characteristic of primary sclerosing cholangitis?

  1. A filling defect within a uniformly dilated duct
  2. Multiple short strictures with intervening normal-caliber ducts Correct answer.
  3. A single focal stricture at the distal common bile duct
  4. Diffuse ductal dilatation without strictures

Explanation

Primary sclerosing cholangitis produces multifocal strictures alternating with normal or slightly dilated segments, giving a beaded appearance of the intrahepatic and extrahepatic ducts. This pattern reflects fibroinflammatory destruction of the duct wall. A solitary stricture or uniform dilatation suggests other diagnoses.

Question 39Hepatobiliary and Pancreatic Surgery

A 70-year-old woman has a 3 cm hepatocellular carcinoma in segment VII with preserved liver function and no extrahepatic spread. Which treatment offers the best chance of long-term survival?

  1. Transarterial chemoembolization
  2. Observation with serial imaging
  3. Surgical resection or ablation depending on location and liver reserve Correct answer.
  4. Systemic sorafenib

Explanation

For a solitary tumor with preserved liver function and no extrahepatic disease, resection or local ablation offers the best chance of cure. Transplant assessment is also relevant if cirrhosis is present. Palliative options are reserved for unresectable or advanced disease.

Question 40Hepatobiliary and Pancreatic Surgery

Which feature most reliably distinguishes an insulinoma from factitious hypoglycemia due to exogenous insulin?

  1. Suppressed C-peptide during hypoglycemia Correct answer.
  2. Elevated proinsulin during hypoglycemia
  3. Elevated serum insulin during hypoglycemia
  4. Low blood glucose during symptoms

Explanation

In endogenous hyperinsulinism such as insulinoma, C-peptide is elevated or inappropriately normal during hypoglycemia because the pancreas secretes insulin and C-peptide together. Exogenous insulin suppresses endogenous secretion, so C-peptide is low while insulin is high. This dissociation is the key diagnostic discriminator.

Question 41Hepatobiliary and Pancreatic Surgery

During a laparoscopic cholecystectomy, the critical view of safety requires which of the following?

  1. Routine intraoperative cholangiography in every case
  2. Clearance of fat from the hepatocystic triangle and demonstration of only two structures entering the gallbladder Correct answer.
  3. Division of the cystic artery before the cystic duct
  4. Dissection extending along the common bile duct to the duodenum

Explanation

The critical view of safety is achieved when the hepatocystic triangle is cleared of fat and the lower part of the gallbladder is separated from the cystic plate so that only two structures, the cystic duct and cystic artery, are seen entering the gallbladder. This maneuver reduces misidentification of the common bile duct. Routine cholangiography is a separate adjunct and not a component of the view.

Question 42Hepatobiliary and Pancreatic Surgery

A 55-year-old man has acute gallstone pancreatitis with a predicted severe course. Which intervention is indicated within the first 72 hours?

  1. Urgent ERCP with sphincterotomy in all patients regardless of duct status
  2. Total parenteral nutrition from admission
  3. Early laparoscopic cholecystectomy during the same admission for mild disease Correct answer.
  4. Immediate pancreatic necrosectomy

Explanation

For mild gallstone pancreatitis, early cholecystectomy during the index admission is recommended because it reduces the risk of recurrent biliary events. ERCP is reserved for patients with concurrent cholangitis or persistent duct obstruction. Necrosectomy is delayed and reserved for infected necrosis.

Question 43Hepatobiliary and Pancreatic Surgery

Which statement about the anatomy of the ampulla of Vater is correct?

  1. It opens into the third part of the duodenum on its anterior wall
  2. It drains directly into the jejunum
  3. It is formed by the union of the common bile duct and main pancreatic duct within the duodenal wall Correct answer.
  4. It lies within the pyloric canal

Explanation

The ampulla of Vater is formed where the common bile duct and main pancreatic duct join within the wall of the second part of the duodenum, opening at the major duodenal papilla. This shared terminal segment explains how a stone at the ampulla can obstruct both biliary and pancreatic drainage.

Question 44Hepatobiliary and Pancreatic Surgery

A patient with cirrhosis and refractory ascites is being evaluated for a transjugular intrahepatic portosystemic shunt. Which factor most strongly predicts poor outcome after the procedure?

  1. Presence of esophageal varices
  2. Serum albumin of 3.8 g/dL
  3. Model for End-Stage Liver Disease score above 18 Correct answer.
  4. Ascites responding to a single diuretic dose

Explanation

A high MELD score, particularly above 18, predicts increased mortality after TIPS and should prompt caution or alternative management. TIPS reduces portal pressure but can precipitate liver failure in patients with poor hepatic reserve. Therefore hepatic function must be carefully assessed before shunting.

Question 45Hepatobiliary and Pancreatic Surgery

A 40-year-old woman has a 4 cm cystic lesion in the pancreatic body with a thick wall, septations, and elevated carcinoembryonic antigen in cyst fluid. What is the most likely diagnosis?

  1. Mucinous cystic neoplasm Correct answer.
  2. Solid pseudopapillary neoplasm
  3. Pancreatic pseudocyst
  4. Serous cystadenoma

Explanation

A macrocystic lesion with septations and elevated cyst fluid CEA suggests a mucinous cystic neoplasm, which carries malignant potential and generally warrants resection. Serous cystadenomas are typically microcystic with low CEA. Pseudocysts follow pancreatitis and lack this neoplastic profile.

Question 46Hepatobiliary and Pancreatic Surgery

Which mechanism best explains the benefit of preoperative biliary drainage before pancreaticoduodenectomy in a jaundiced patient?

  1. It improves nutritional status and coagulopathy associated with cholestasis Correct answer.
  2. It decreases tumor size before resection
  3. It reduces the risk of postoperative pancreatic fistula
  4. It eliminates the need for vascular resection

Explanation

Relief of cholestasis improves fat absorption, nutritional status, and coagulopathy related to vitamin K malabsorption. However, routine drainage is not recommended because it carries risks of infection and stent complications. Drainage is reserved for cholangitis, severe pruritus, or delayed surgery.

Question 47Hepatobiliary and Pancreatic Surgery

A 68-year-old man with a hilar cholangiocarcinoma has tumor involving the secondary biliary radicles bilaterally. According to the Bismuth-Corlette classification, which type is this?

  1. Type II
  2. Type I
  3. Type IV Correct answer.
  4. Type IIIa

Explanation

Bismuth-Corlette type IV describes tumor extending to involve the secondary biliary radicles on both sides, which usually precludes resection. Type I involves the common hepatic duct below the confluence, type II reaches the confluence, and type III extends into one secondary radical. Accurate classification guides resectability assessment.

Question 48Hepatobiliary and Pancreatic Surgery

A patient undergoes pancreaticoduodenectomy and on postoperative day 5 has a high-output amylase-rich drain with fever. Which management step is most appropriate?

  1. Drainage maintenance, antibiotics, and nutritional support with imaging to assess the collection Correct answer.
  2. Routine prophylactic octreotide to close the fistula
  3. Immediate initiation of total parenteral nutrition and nothing by mouth indefinitely
  4. Immediate reoperation for completion pancreatectomy

Explanation

A postoperative pancreatic fistula is managed initially by maintaining drain patency, treating infection with antibiotics, providing nutritional support, and imaging to characterize collections. Many fistulas resolve with conservative management. Reoperation is reserved for hemorrhage, sepsis uncontrolled by drainage, or disrupted anastomosis.

Question 49Hepatobiliary and Pancreatic Surgery

A 50-year-old man has a 2 cm pancreatic neuroendocrine tumor in the tail with no metastases. Which operative approach is most appropriate?

  1. Total pancreatectomy
  2. Distal pancreatectomy with lymphadenectomy Correct answer.
  3. Enucleation regardless of proximity to the main duct
  4. Observation with annual imaging

Explanation

A sporadic pancreatic neuroendocrine tumor of this size in the tail is best treated by distal pancreatectomy, often with splenectomy and lymphadenectomy for oncologic clearance. Enucleation is reserved for small, superficial, low-grade tumors away from the main duct. Observation is not appropriate for a tumor of this size in a fit patient.

Question 50Hepatobiliary and Pancreatic Surgery

A patient with severe acute pancreatitis develops fever, rising inflammatory markers, and gas within a peripancreatic collection on CT at four weeks. What is the most appropriate intervention?

  1. Antibiotics alone without drainage
  2. Step-up approach starting with percutaneous or endoscopic drainage Correct answer.
  3. Immediate open necrosectomy
  4. ERCP with stent placement

Explanation

Infected pancreatic necrosis is managed by a step-up approach beginning with minimally invasive drainage, escalating to necrosectomy only if needed. This strategy reduces morbidity and mortality compared with immediate open surgery. Antibiotics alone are insufficient once a infected collection with gas is established.