Gastrointestinal Surgery — MCQs
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All of the following are sequelae of peptic ulcer surgery EXCEPT:
A 38-year-old man with Crohn's disease presents with a 3-day history of increasing abdominal pain, distension, and inability to pass gas or stool. CT shows dilated small bowel loops with a transition point in the terminal ileum and bowel wall thickening. What factor most influences the decision between conservative and surgical management?
A 45-year-old woman undergoes laparoscopic cholecystectomy. On postoperative day 3, she develops right upper quadrant pain, fever, and jaundice. Her bilirubin rises from 1.2 to 8.5 mg/dL. ERCP shows extravasation of contrast from the common bile duct. What is the most likely cause of this complication?
A 25-year-old woman with inflammatory bowel disease requires total colectomy with ileostomy. She is getting married in 6 months and wants to know about conversion to J-pouch. She has mild perianal disease and takes anti-TNF therapy. Evaluate the timing and appropriateness of J-pouch reconstruction.
A 28-year-old woman with ulcerative colitis requires emergency colectomy for toxic megacolon. She is 20 weeks pregnant with her first child. The obstetric team is concerned about fetal risks, while the surgical team emphasizes maternal life-threatening condition. The patient wants to prioritize fetal safety. Evaluate the management approach.
Which of the following is not seen with ileal resections?
Identify the procedure shown in the image, which is performed in a patient with recurrent GERD.
All the following are true about acute cholecystitis, except
A 34-year-old patient presents with severe pain in the right upper quadrant that radiates to the right shoulder. During laparoscopic cholecystectomy, which of the following anatomical spaces must be carefully identified to prevent bile duct injury?
A 23-year-old man presents to the emergency department with bloody vomitus. The patient is an alcoholic and has presented similarly before. He is given ondansetron; however, he continues to vomit. The patient complains of sudden substernal chest pain and dysphagia after another bout of vomiting. His temperature is 99°F (37.2°C), blood pressure is 117/60 mmHg, pulse is 122/min, respirations are 15/min, and oxygen saturation is 99% on room air. Physical exam is notable for an uncomfortable man with subcutaneous emphysema in the patient’s neck and supraclavicular areas. Which of the following is the most likely diagnosis?
Gastrointestinal Surgery Indian Medical PG Practice Questions and MCQs
Question 1011: All of the following are sequelae of peptic ulcer surgery EXCEPT:
- A. Dumping syndrome
- B. Bilious vomiting
- C. Increased appetite (Correct Answer)
- D. Diarrhoea
Explanation: ***Increased appetite*** - **Increased appetite** is generally not a sequela of peptic ulcer surgery; patients commonly experience *early satiety* or *anorexia* due to faster gastric emptying and altered nutrient absorption. - Surgical alterations to the GI tract often lead to changes in hunger and satiety signals, typically *reducing desire for large meals* rather than increasing appetite. *Dumping syndrome* - **Dumping syndrome** is a common sequela, particularly after gastrectomy or vagotomy, due to *rapid emptying* of undigested food into the small intestine. - Symptoms include abdominal pain, nausea, diarrhea, and vasomotor symptoms like palpitations and sweating, often occurring post-prandially. *Bilious vomiting* - **Bilious vomiting** can occur, especially after gastrectomy or gastrojejunostomy, when *bile refluxes* into the gastric remnant and is subsequently vomited. - This is often due to an *altered anatomical arrangement* that allows bile to enter the stomach more easily. *Diarrhoea* - **Diarrhea** is a frequently reported complication, often resulting from *accelerated gastric emptying*, *bacterial overgrowth* in the small intestine, or *loss of vagal innervation*. - It can be chronic and significantly impact quality of life due to malabsorption or rapid transit of chyme.
Question 1012: A 38-year-old man with Crohn's disease presents with a 3-day history of increasing abdominal pain, distension, and inability to pass gas or stool. CT shows dilated small bowel loops with a transition point in the terminal ileum and bowel wall thickening. What factor most influences the decision between conservative and surgical management?
- A. Degree of bowel wall thickening
- B. History of previous bowel resections
- C. Duration of symptoms
- D. Presence of fever and leukocytosis (Correct Answer)
Explanation: ***Presence of fever and leukocytosis*** - **Fever** and **leukocytosis** are critical indicators of **bowel ischemia**, **perforation**, or severe infection, suggesting a complicated obstruction requiring urgent surgical intervention. - In the absence of these systemic signs of toxicity, a conservative approach with fluid resuscitation, bowel rest, and corticosteroids might be appropriate for a Crohn's disease exacerbation causing partial obstruction. *Degree of bowel wall thickening* - While **bowel wall thickening** is characteristic of Crohn's disease and contributes to luminal narrowing, its presence alone does not dictate immediate surgical intervention unless accompanied by signs of severe inflammation or impending complications. - The degree of thickening can be a chronic finding in Crohn's and might respond to medical therapy if there are no signs of infection or ischemia. *History of previous bowel resections* - A history of **previous resections** is relevant for surgical planning (e.g., risk of short bowel syndrome) but does not, in itself, determine the primary decision between conservative vs. surgical management for an acute obstructive episode. - It influences the operative approach if surgery is chosen, but not necessarily the initial choice for managing the current exacerbation. *Duration of symptoms* - The **duration of symptoms** provides context for the chronicity of the obstruction but is not the sole determinant for immediate surgical intervention. - A longer duration without signs of peritonitis or ischemia might even suggest a more chronic, partial obstruction that responds to medical management.
Question 1013: A 45-year-old woman undergoes laparoscopic cholecystectomy. On postoperative day 3, she develops right upper quadrant pain, fever, and jaundice. Her bilirubin rises from 1.2 to 8.5 mg/dL. ERCP shows extravasation of contrast from the common bile duct. What is the most likely cause of this complication?
- A. Iatrogenic bile duct injury during dissection (Correct Answer)
- B. Retained common bile duct stone
- C. Cystic artery injury with bleeding
- D. Postoperative sphincter of Oddi dysfunction
Explanation: ***Iatrogenic bile duct injury during dissection*** - The combination of **postoperative right upper quadrant pain**, **fever**, **jaundice**, and **rising bilirubin** following laparoscopic cholecystectomy, along with **extravasation of contrast from the common bile duct on ERCP**, is highly indicative of an iatrogenic bile duct injury incurred during the surgery. - This injury can lead to **bile leakage** (causing pain and peritonitis-like symptoms) and **obstruction** (leading to jaundice and hyperbilirubinemia). *Retained common bile duct stone* - While a retained CBD stone can cause **postoperative jaundice** and **pain**, the ERCP finding of **contrast extravasation** strongly points to a structural injury rather than simple obstruction by a calculus. - A retained stone would typically show a **filling deficit** or obstruction, not leakage of contrast. *Cystic artery injury with bleeding* - A **cystic artery injury** would primarily cause **hemorrhage**, leading to symptoms like **anemia**, **hypotension**, and potentially a **hematoma**, but it would not explain the **jaundice** or **contrast extravasation from the common bile duct**. - Internal bleeding would typically manifest differently, without direct evidence of bile duct compromise. *Postoperative sphincter of Oddi dysfunction* - **Sphincter of Oddi dysfunction** can cause **biliary pain** and elevated liver enzymes, but it typically presents as an **obstruction to bile flow**, not as **extravasation of contrast** from the common bile duct. - It would not explain the clear evidence of a **ductal leak** seen on ERCP.
Question 1014: A 25-year-old woman with inflammatory bowel disease requires total colectomy with ileostomy. She is getting married in 6 months and wants to know about conversion to J-pouch. She has mild perianal disease and takes anti-TNF therapy. Evaluate the timing and appropriateness of J-pouch reconstruction.
- A. Alternative continent ileostomy procedure
- B. Immediate J-pouch construction during colectomy
- C. Staged J-pouch after 3-6 months with temporary ileostomy (Correct Answer)
- D. Delay J-pouch until after marriage and pregnancy
Explanation: ***Staged J-pouch after 3-6 months with temporary ileostomy*** - This approach allows for **bowel recovery** after the initial colectomy and addresses the presence of **mild perianal disease**, which can worsen with immediate J-pouch construction. - The 3-6 month window aligns with the patient's desire for reconstruction before her wedding, providing sufficient time for healing and assessment. - **Anti-TNF therapy** increases perioperative complications, making staged reconstruction safer. *Alternative continent ileostomy procedure* - This procedure, like a **Kock pouch**, is complex and carries its own set of complications, making it a less favored primary option compared to a J-pouch. - It might be considered in cases where a J-pouch is contraindicated or fails, but not as a first-line alternative in this scenario. *Immediate J-pouch construction during colectomy* - This is generally not recommended in patients with **active inflammatory bowel disease** (even if mild) or those on **anti-TNF therapy**, as it significantly increases the risk of **anastomotic leaks** and pouch-related complications. - The presence of **perianal disease** further contraindicates an immediate approach due to increased infection risk. *Delay J-pouch until after marriage and pregnancy* - While pregnancy can influence J-pouch function, current evidence supports that a well-established J-pouch does not significantly impact fertility or pregnancy outcomes. - Delaying unnecessarily can cause the patient to endure a permanent ileostomy longer than desired, impacting her quality of life and wedding plans.
Question 1015: A 28-year-old woman with ulcerative colitis requires emergency colectomy for toxic megacolon. She is 20 weeks pregnant with her first child. The obstetric team is concerned about fetal risks, while the surgical team emphasizes maternal life-threatening condition. The patient wants to prioritize fetal safety. Evaluate the management approach.
- A. Immediate colectomy with fetal monitoring (Correct Answer)
- B. Immediate delivery followed by colectomy
- C. Transfer to tertiary care center
- D. Delayed surgery with maximum medical management
Explanation: ***Immediate colectomy with fetal monitoring*** - **Toxic megacolon** is a life-threatening complication that requires urgent surgical intervention to prevent **bowel perforation** and **sepsis**, which would be devastating for both mother and fetus. - While fetal stability is important, the mother's life must be prioritized, as fetal viability is impossible without a living mother; continuous **fetal monitoring** during and after surgery is crucial to assess fetal well-being. *Immediate delivery followed by colectomy* - At **20 weeks gestation**, the fetus is **non-viable**, meaning it cannot survive outside the womb. - Attempting immediate delivery would expose the mother to urgent surgery after a failed obstetric procedure, increasing her morbidity without improving fetal outcome. *Transfer to tertiary care center* - This patient has an **emergency condition** (**toxic megacolon**) that requires immediate intervention; delaying definitive treatment for transfer could lead to **bowel perforation** and **sepsis**, increasing mortality for both mother and fetus. - The necessary surgical expertise and resources for such an emergency are typically available at most acute care hospitals. *Delayed surgery with maximum medical management* - **Toxic megacolon** is a surgical emergency; delaying surgery and relying solely on medical management significantly increases the risk of **perforation**, **sepsis**, and maternal and fetal mortality. - Medical management is typically reserved for less severe forms of colitis or as a temporizing measure before surgery, and it has already failed as the patient developed toxic megacolon.
Question 1016: Which of the following is not seen with ileal resections?
- A. Microcytic hypochromic anemia
- B. Nuclear cytological asynchrony
- C. Neurological manifestation
- D. Cognitive improvement (Correct Answer)
Explanation: ***Cognitive improvement*** - Ileal resections are associated with malabsorption of various nutrients, but they do not lead to **cognitive improvement**. In fact, nutrient deficiencies (particularly B12) can negatively impact cognitive function. - The effects of ileal resections are primarily related to **digestion** and **absorption**, causing symptoms like diarrhea, weight loss, and specific vitamin deficiencies, not enhanced brain function. - This is the **most obvious answer** to what is "not seen" with ileal resections. *Microcytic hypochromic anemia* - This type of anemia is caused by **iron deficiency**, which is **NOT a direct consequence** of ileal resection. - **Iron absorption** occurs primarily in the **duodenum and proximal jejunum**, not in the ileum. - Ileal resection typically causes **macrocytic anemia** (due to B12 deficiency), not microcytic anemia. - While microcytic anemia could occur indirectly from chronic blood loss in inflammatory bowel disease, it is not a characteristic feature of ileal resection itself. *Nuclear cytological asynchrony* - **Nuclear cytological asynchrony** (megaloblastic changes) is a **direct consequence** of **vitamin B12 deficiency**, which commonly results from terminal ileal resection. - The **terminal ileum** is the primary site for absorption of **vitamin B12** (cobalamin) bound to intrinsic factor. - This manifests as macrocytic anemia with characteristic bone marrow changes. *Neurological manifestation* - **Vitamin B12 deficiency**, resulting from impaired absorption after ileal resection, directly causes various **neurological symptoms**. - These include **peripheral neuropathy**, **subacute combined degeneration of the spinal cord** (posterior and lateral columns), paresthesias, ataxia, memory impairment, and cognitive changes. - Neurological symptoms may occur even before hematological changes become apparent.
Question 1017: Identify the procedure shown in the image, which is performed in a patient with recurrent GERD.
- A. Nissen fundoplication (Correct Answer)
- B. Partial gastrectomy
- C. Esophageal banding
- D. Toupet fundoplication
Explanation: ***Nissen fundoplication*** - The image clearly depicts the **fundus of the stomach** being wrapped completely around the lower esophagus and sutured in place, which is the hallmark of a **360-degree Nissen fundoplication**. - This procedure aims to strengthen the **lower esophageal sphincter (LES)** to prevent reflux in patients with recurrent GERD. *Partial gastrectomy* - This procedure involves the **surgical removal of a portion of the stomach** and is typically performed for conditions like gastric cancer or severe ulcers, not primarily for GERD. - The image shows the stomach intact and being wrapped, not resected. *Esophageal banding* - Esophageal banding is a procedure used to treat **esophageal varices** by placing elastic bands around dilated veins, not a surgical intervention for GERD that alters stomach anatomy. - The image shows a gastric maneuver, not banding of the esophagus. *Toupet fundoplication* - A Toupet fundoplication involves a **partial (270-degree) wrap** of the fundus around the esophagus, leaving a small portion unwrapped. - The image distinctly illustrates a **complete 360-degree wrap**, distinguishing it from a Toupet fundoplication.
Question 1018: All the following are true about acute cholecystitis, except
- A. Gall bladder thickness >3 mm on USG
- B. Murphy's sign positive
- C. Preferential visualization of gall bladder in HIDA scan (Correct Answer)
- D. Leukocytosis
Explanation: ***Preferential visualization of gall bladder in HIDA scan*** - In acute cholecystitis, the **cystic duct** becomes obstructed, preventing bile flow into the gallbladder. - A **HIDA scan** (hepatobiliary iminodiacetic acid scan) would show **non-visualization of the gallbladder** due to this obstruction, not preferential visualization. *Gall bladder thickness >3 mm on USG* - An **ultrasound (USG)** finding of gallbladder wall thickening **greater than 3 mm** is a common indicator of inflammation in acute cholecystitis. - This thickening is due to **edema** and inflammation of the gallbladder wall. *Murphy's sign positive* - A **positive Murphy's sign** involves tenderness and an inspiratory arrest upon palpation of the right upper quadrant, specifically over the gallbladder. - This clinical sign is a **classic indicator** of acute cholecystitis. *Leukocytosis* - **Leukocytosis**, an elevated white blood cell count, is a common systemic inflammatory response seen in acute cholecystitis. - It reflects the body's reaction to the **inflammation and possible infection** within the gallbladder.
Question 1019: A 34-year-old patient presents with severe pain in the right upper quadrant that radiates to the right shoulder. During laparoscopic cholecystectomy, which of the following anatomical spaces must be carefully identified to prevent bile duct injury?
- A. Foramen of Winslow
- B. Lesser sac
- C. Calot's triangle (Correct Answer)
- D. Morrison's pouch
Explanation: ***Calot's triangle*** - **Calot's triangle** is the critical anatomical landmark containing the **cystic artery** and **cystic duct**, whose proper identification is essential to prevent injury to the hepatic artery or bile ducts during cholecystectomy. - Its boundaries are the **cystic duct** (lateral), the **common hepatic duct** (medial), and the **inferior border of the liver** (superior, sometimes described as the cystic artery). *Foramen of Winslow* - The **Foramen of Winslow** (epiploic foramen) is an opening connecting the **greater and lesser sacs** of the peritoneal cavity. - It is not directly relevant to identifying structures during cholecystectomy, but rather to accessing the lesser sac or for surgical procedures involving structures like the portal triad. *Lesser sac* - The **lesser sac** (omental bursa) is a peritoneal cavity posterior to the stomach and lesser omentum. - It is explored in procedures involving the pancreas, posterior gastric wall, or for assessing fluid collections, but not for direct identification of cystic structures during standard cholecystectomy. *Morrison's pouch* - **Morrison's pouch** is the **hepatorenal recess**, a potential space between the posterior aspect of the liver and the right kidney and adrenal gland. - It is a common site for **fluid accumulation** (e.g., ascites, blood) but is not directly incised or dissected for preventing bile duct injury during cholecystectomy.
Question 1020: A 23-year-old man presents to the emergency department with bloody vomitus. The patient is an alcoholic and has presented similarly before. He is given ondansetron; however, he continues to vomit. The patient complains of sudden substernal chest pain and dysphagia after another bout of vomiting. His temperature is 99°F (37.2°C), blood pressure is 117/60 mmHg, pulse is 122/min, respirations are 15/min, and oxygen saturation is 99% on room air. Physical exam is notable for an uncomfortable man with subcutaneous emphysema in the patient’s neck and supraclavicular areas. Which of the following is the most likely diagnosis?
- A. Esophageal varices
- B. Tension pneumothorax
- C. Esophageal rupture (Correct Answer)
- D. Mallory Weiss syndrome
Explanation: ***Esophageal rupture*** - The sudden onset of **substernal chest pain** and **dysphagia** following forceful vomiting, particularly in a patient who continues to vomit despite antiemetics, is highly suggestive of esophageal rupture, also known as **Boerhaave syndrome**. - The presence of **subcutaneous emphysema** in the neck and supraclavicular areas is a classic sign, indicating gas leakage from the ruptured esophagus into the surrounding soft tissues, confirming the diagnosis. *Esophageal varices* - Esophageal varices are a common cause of **bloody vomitus** in alcoholics due to portal hypertension. However, they typically present with painless upper gastrointestinal bleeding and do not explain the sudden onset of **severe chest pain**, dysphagia, or subcutaneous emphysema following vomiting. - Variceal bleeding is primarily a **hemorrhagic event**, not a perforation event, and the patient's vitals (blood pressure 117/60 mmHg) do not indicate massive bleeding despite bloody vomitus. *Tension pneumothorax* - Tension pneumothorax presents with severe respiratory distress, hypotension, tracheal deviation, and absent breath sounds on the affected side. While it can cause **subcutaneous emphysema**, it does not typically follow a sudden bout of vomiting with preceding esophageal symptoms like dysphagia. - The patient's blood pressure is stable (117/60 mmHg), and there is no mention of severe respiratory distress or tracheal deviation, which would be crucial for a diagnosis of tension pneumothorax. *Mallory Weiss syndrome* - Mallory-Weiss syndrome involves a **mucosal tear** at the gastroesophageal junction due to forceful vomiting, leading to upper gastrointestinal bleeding, which explains the bloody vomitus. - However, it is a **partial-thickness tear** and does not typically cause the severe **substernal chest pain**, dysphagia, or subcutaneous emphysema associated with a full-thickness esophageal rupture.
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