Gastrointestinal Surgery Practice Questions

Q: A patient with esophageal varices presents with acute upper gastrointestinal bleeding. Which treatment is most appropriate for controlling the bleeding?

Esophageal variceal banding. ***Esophageal variceal banding*** - **Endoscopic variceal ligation (EVL) or banding** is the preferred method for controlling acute bleeding from esophageal varices due to its high success rate and safety profile. - It involves placing elastic bands over the bleeding varices to **occlude blood flow** and promote thrombosis, effectively stopping the hemorrhage. *Thermal coagulation* - **Thermal techniques**, such as heater probe or argon plasma coagulation, are generally reserved for non-variceal upper GI bleeding. - They are less effective and carry a higher risk of complications (e.g., perforation) when applied to the thin-walled, high-pressure esophageal varices. *Systemic antibiotics* - **Systemic antibiotics** are crucial for preventing complications like **spontaneous bacterial peritonitis** or other infections in patients with acute variceal bleeding. - However, antibiotics do not directly control the bleeding itself; they are used as an adjunct therapy. *Immediate surgery* - **Immediate surgery** for acute variceal bleeding is a last resort, generally considered only when endoscopic and pharmacological treatments have failed, or if there are specific contraindications to less invasive approaches. - Surgical shunts or devascularization procedures carry significant morbidity and mortality, and are rarely the first-line treatment.

Q: A 50-year-old female with a history of peptic ulcer disease presents with sudden, severe abdominal pain and free air under the diaphragm on X-ray. What is the next best step in management?

Immediate surgery. ***Immediate surgery*** - The presence of **free air under the diaphragm** (pneumoperitoneum) on X-ray in a patient with sudden, severe abdominal pain strongly indicates a **perforated viscus**, most commonly a perforated peptic ulcer. - This is an **abdominal emergency** requiring immediate surgical intervention to repair the perforation, prevent peritonitis, and reduce mortality. *Intravenous antibiotics* - While antibiotics are part of the management for a perforated viscus to prevent or treat peritonitis, they are **adjunctive therapy** and not the primary next best step in the absence of surgical repair. - Delaying surgery by relying solely on antibiotics can lead to worsening sepsis and complications due to ongoing spillage of gut contents. *Nasogastric decompression* - Nasogastric decompression is used to **reduce gastric distention** and drain gastric contents, which can be helpful in cases of bowel obstruction or to decompress the stomach prior to surgery. - It does not address the underlying pathology of a perforation and is not the definitive treatment. *Endoscopic evaluation* - Endoscopy is **contraindicated** in cases of suspected visceral perforation because insufflation of air can worsen the pneumoperitoneum and potentially expand the tear. - It is used for diagnosis and treatment of upper GI bleeding, strictures, or ulcers when perforation is not suspected.

Q: A 50-year-old woman with rheumatoid arthritis presents with a 2-day history of right upper quadrant pain and fever. An ultrasound shows gallstones and a thickened gallbladder wall. What is the diagnosis?

Acute cholecystitis. ***Acute cholecystitis*** - The patient presents with **right upper quadrant pain**, **fever**, and ultrasound findings of **gallstones** and a **thickened gallbladder wall**, which are classic diagnostic criteria for acute cholecystitis. - The patient's underlying rheumatoid arthritis is a comorbidity but does not directly explain these acute gallbladder symptoms. *Chronic cholecystitis* - This condition involves recurrent episodes of gallbladder inflammation, typically presenting with less severe and more intermittent symptoms over a longer period. - The sudden onset of **fever** and acute pain (2-day history) is more indicative of **acute inflammation** rather than chronic. *Cholangitis* - Cholangitis is an infection of the **biliary tree**, often presenting with **Charcot's triad** (fever, right upper quadrant pain, jaundice) or Reynold's pentad. - While fever and RUQ pain are present, the ultrasound findings specifically pointing to gallbladder inflammation (thickened wall) and gallstones make **cholecystitis** more likely, rather than general bile duct inflammation. *Hepatic abscess* - A hepatic abscess is a localized collection of pus in the liver, which can cause fever and RUQ pain. - However, the ultrasound findings of **gallstones** and a **thickened gallbladder wall** directly point to a gallbladder pathology, making an abscess less likely as the primary diagnosis without other specific imaging findings.

Q: In patients with acute pancreatitis, what is the indication for performing an endoscopic retrograde cholangiopancreatography (ERCP)?

Presence of gallstones in the common bile duct. ***Presence of gallstones in the common bile duct*** - ERCP is indicated in **acute pancreatitis** when there is evidence of **choledocholithiasis** (gallstones in the common bile duct) causing biliary obstruction, especially if accompanied by **cholangitis**. - Its therapeutic role involves **removing obstructing stones** and potentially performing **sphincterotomy** to relieve pressure and prevent further pancreatic insults. *Elevated serum lipase levels* - **Elevated serum lipase** is a primary **diagnostic criterion for acute pancreatitis** itself but does not, by itself, indicate the need for ERCP. - While lipase levels are crucial for diagnosis, they do not provide information about the **etiology or specific bile duct obstruction** that would warrant an immediate ERCP. *Necrosis of more than 30% of the pancreas* - Pancreatic necrosis is a complication of severe pancreatitis, and its extent is typically assessed by **cross-sectional imaging** (e.g., CT scan) rather than ERCP. - ERCP is not primarily a diagnostic tool for **pancreatic necrosis** and is generally avoided in the acute phase of necrotic pancreatitis due to the risk of exacerbating inflammation or infection, unless there is a concomitant **biliary obstruction or cholangitis**. *Pancreatic pseudocyst larger than 6 cm* - A **pancreatic pseudocyst** is a fluid collection complication that may develop after acute pancreatitis. While large or symptomatic pseudocysts may require drainage, this is typically done via **endoscopic ultrasound-guided drainage** or **surgical intervention**, not usually immediate ERCP unless there's a specific need to access the pancreatic duct for other reasons (e.g., duct obliteration). - ERCP is mostly used for pseudocysts in cases where there is **ductal communication** or to rule out **main pancreatic duct disruption**, not solely based on size.

Q: What is the first-line treatment for a patient diagnosed with acute diverticulitis without complications?

Antibiotics. ***Antibiotics*** - For **uncomplicated acute diverticulitis**, antibiotics covering common enteric bacteria (e.g., gram-negative rods and anaerobes) have traditionally been the first-line treatment. - This approach aims to reduce inflammation and prevent progression to complications like abscess formation or perforation. - **Note:** Recent evidence (AVOD, DIABOLO trials) suggests selective antibiotic use in truly uncomplicated cases, but antibiotics remain standard in most protocols, especially with fever, leukocytosis, or comorbidities. *Immediate surgery* - **Immediate surgery** is generally reserved for **complicated diverticulitis**, such as perforation with peritonitis, large abscess (>4cm), fistula, or obstruction. - It is not indicated for uncomplicated cases as a first-line treatment. - Elective surgery may be considered after recurrent episodes. *Probiotics* - While probiotics may have a role in gut health maintenance, there is **insufficient evidence** to support their use as a primary treatment for acute diverticulitis. - They are not a substitute for antibiotics or supportive care in managing the acute inflammatory process. *Dietary modification* - **Dietary modification** (clear liquids or low-residue diet during acute flare-ups, followed by high-fiber diet for prevention) is an important **supportive measure** and plays a role in management. - However, in the context of traditional teaching and most examination standards, antibiotics are considered the primary therapeutic intervention for acute inflammation, with dietary changes serving as adjunctive therapy. - Modern evidence supports conservative management with dietary modification alone in select uncomplicated cases.

Q: A 45-year-old male with a history of peptic ulcer disease presents with severe abdominal pain, hypotension, and tachycardia. What is the most likely diagnosis?

Perforated peptic ulcer. ***Perforated peptic ulcer*** - A history of **peptic ulcer disease** combined with **severe abdominal pain**, **hypotension**, and **tachycardia** strongly indicates a perforated ulcer and subsequent **peritonitis**. - This is a surgical emergency where gastric contents leak into the peritoneal cavity, causing a systemic inflammatory response. *Acute pancreatitis* - While it causes **severe abdominal pain**, it typically presents with pain radiating to the **back** and is often associated with elevated **amylase** and **lipase**. Hypotension and tachycardia are later signs. - History of peptic ulcer disease is not a direct risk factor for acute pancreatitis, though both can cause abdominal pain. *Cholecystitis* - Characterized by **right upper quadrant pain**, often radiating to the **right shoulder**, and is associated with **gallstones**. Fever and leukocytosis are common, but severe hemodynamic instability is less typical initially. - The patient's history of peptic ulcer disease and diffuse severe pain makes cholecystitis less likely. *Gastric outlet obstruction* - Presents with **postprandial vomiting**, **early satiety**, and weight loss, not acute severe pain and shock. - This is a chronic condition, and acute hemodynamic instability like hypotension and tachycardia are not typical features.

Q: A 40-year-old male presents with a mass in the groin that becomes more prominent when standing and disappears when lying down. What is the most likely diagnosis?

Inguinal hernia. ***Inguinal hernia*** - The classic presentation of a **groin mass** that becomes more prominent with **standing** and reduces or disappears when **lying down** is highly characteristic of an inguinal hernia. - This behavior is due to the **protrusion of abdominal contents** through a weakness in the abdominal wall, which is more evident with increased intra-abdominal pressure. *Femoral hernia* - While also a groin hernia, **femoral hernias** typically present as a mass inferior to the **inguinal ligament** and medial to the **femoral vessels**. - They are more common in **women** and have a higher risk of **strangulation**, but the described positional changes are more typical of inguinal hernias. *Testicular torsion* - **Testicular torsion** involves the twisting of the spermatic cord, leading to acute **scrotal pain**, **swelling**, and often **nausea/vomiting**. - It is an **acute surgical emergency** and does not present as a gradual, reducible groin mass that changes with position. *Hydrocele* - A **hydrocele** is a collection of fluid around the testis within the **tunica vaginalis**, causing **scrotal swelling**. - It is typically **transilluminable** and does not usually reduce or disappear with position changes, nor does it typically present as a mass in the groin.

Q: Which procedure is indicated for a patient with Barrett's esophagus and high-grade dysplasia?

Endoscopic mucosal resection. ***Endoscopic mucosal resection*** - **Endoscopic mucosal resection (EMR)** is indicated for Barrett's esophagus with **high-grade dysplasia (HGD)** because it allows for the removal of visible lesions and accurate staging, confirming the absence of invasive carcinoma. - It also provides tissue for histopathological examination to ensure that the HGD has been adequately resected and to detect any underlying **adenocarcinoma**. *Photodynamic therapy* - **Photodynamic therapy (PDT)** uses light-activated drugs to destroy dysplastic cells, but it is less commonly used for **HGD** due to higher rates of stricture formation and incomplete eradication compared to modern endoscopic techniques. - While PDT can be effective for flat, multifocal dysplasia, it is generally considered a second-line therapy or for those who cannot undergo resection. *Proton pump inhibitor therapy* - **Proton pump inhibitors (PPIs)** are essential for managing **gastroesophageal reflux disease (GERD)** symptoms and preventing further progression of Barrett's esophagus, but they do not treat or eradicate existing **high-grade dysplasia**. - While PPIs create a less acidic environment, which can help prevent further injury, they do not remove the dysplastic cells themselves. *Esophagectomy* - **Esophagectomy** is a major surgical procedure involving the removal of part or all of the esophagus; it is typically reserved for patients with **invasive esophageal adenocarcinoma** or multifocal HGD that cannot be treated endoscopically. - The risks associated with esophagectomy, such as anastomotic leaks and strictures, are too high for HGD that can be managed with less invasive endoscopic techniques.

Question 1

A patient with esophageal varices presents with acute upper gastrointestinal bleeding. Which treatment is most appropriate for controlling the bleeding?

Accepted Answer

Esophageal variceal banding

Answer

Thermal coagulation

Answer

Systemic antibiotics

Answer

Immediate surgery

Question 2

A 50-year-old female with a history of peptic ulcer disease presents with sudden, severe abdominal pain and free air under the diaphragm on X-ray. What is the next best step in management?

Accepted Answer

Immediate surgery

Answer

Intravenous antibiotics

Answer

Nasogastric decompression

Answer

Endoscopic evaluation

Question 3

A 50-year-old woman with rheumatoid arthritis presents with a 2-day history of right upper quadrant pain and fever. An ultrasound shows gallstones and a thickened gallbladder wall. What is the diagnosis?

Accepted Answer

Acute cholecystitis

Answer

Chronic cholecystitis

Answer

Cholangitis

Answer

Hepatic abscess

Question 4

In patients with acute pancreatitis, what is the indication for performing an endoscopic retrograde cholangiopancreatography (ERCP)?

Accepted Answer

Presence of gallstones in the common bile duct

Answer

Elevated serum lipase levels

Answer

Necrosis of more than 30% of the pancreas

Answer

Pancreatic pseudocyst larger than 6 cm

Question 5

What is the first-line treatment for a patient diagnosed with acute diverticulitis without complications?

Accepted Answer

Antibiotics

Answer

Immediate surgery

Answer

Probiotics

Answer

Dietary modification

Question 6

A 45-year-old male with a history of peptic ulcer disease presents with severe abdominal pain, hypotension, and tachycardia. What is the most likely diagnosis?

Accepted Answer

Perforated peptic ulcer

Answer

Acute pancreatitis

Answer

Cholecystitis

Answer

Gastric outlet obstruction

Question 7

In a patient with esophageal cancer and dysphagia affecting liquid intake, what is the most appropriate intervention to ensure nutritional support?

Accepted Answer

Placement of a percutaneous endoscopic gastrostomy tube

Answer

Total parenteral nutrition

Answer

Nasogastric tube feeding

Answer

Esophageal stent placement

Question 8

Which of the following is the most appropriate initial step in managing a patient with a suspected bowel obstruction?

Accepted Answer

Nasogastric tube insertion and fluid resuscitation as initial management

Answer

Immediate surgical intervention

Answer

Administer a laxative for bowel movement

Answer

Plan for elective surgery

Question 9

A 40-year-old male presents with a mass in the groin that becomes more prominent when standing and disappears when lying down. What is the most likely diagnosis?

Accepted Answer

Inguinal hernia

Answer

Femoral hernia

Answer

Testicular torsion

Answer

Hydrocele

Question 10

Which procedure is indicated for a patient with Barrett's esophagus and high-grade dysplasia?

Accepted Answer

Endoscopic mucosal resection

Answer

Photodynamic therapy

Answer

Proton pump inhibitor therapy

Answer

Esophagectomy

Gastrointestinal Surgery — MCQs

Gastrointestinal Surgery — MCQs

On this page

Practice by Chapter

Want unlimited practice?