Gastrointestinal Surgery Practice Questions

Q: Which of the following is the most commonly performed repair for a direct inguinal hernia?

Lichtenstein repair. ***Lichtenstein repair*** - The **Lichtenstein repair** is a **tension-free mesh repair** and is the most commonly performed technique for direct inguinal hernias due to its low recurrence rates. - This technique involves placing a **synthetic mesh** over the deficient posterior wall of the inguinal canal, reinforcing the weakened area. *Bassini's repair* - **Bassini's repair** is a tissue-based repair that involves suturing the conjoined tendon to the inguinal ligament. - It creates tension on the repair, which historically led to **higher recurrence rates** compared to mesh repairs. *Herniotomy* - **Herniotomy** is the surgical removal of the **hernia sac** without repairing the defect in the abdominal wall. - This procedure is typically reserved for **pediatric patients** with indirect inguinal hernias due to the good intrinsic muscle tone and relatively small defect, but it is not the primary repair for direct inguinal hernias in adults. *All of the options* - While all listed procedures are methods for hernia management, only the **Lichtenstein repair** is considered the most commonly performed repair for direct inguinal hernias in current practice. - The other options are less commonly performed or reserved for specific patient populations.

Q: A surgeon examined the case of hernia. Forcefully reduces the sac in abdominal cavity, without actually pushing back the contents. Identify the type of hernia.

Reduction en masse. ***Reduction en masse*** - **Reduction en masse** is a dangerous complication that occurs during attempted hernia reduction where the entire hernia sac, along with its incarcerated contents, is pushed back into the abdominal cavity. - The key feature is that **the contents remain trapped within the sac** after reduction, creating a false sense of successful reduction. - The scenario explicitly describes this: "forcefully reduces the sac... without actually pushing back the contents" - this is the textbook definition of reduction en masse. - This complication is dangerous because the incarcerated/strangulated bowel remains undetected inside the abdomen, potentially leading to **peritonitis and bowel necrosis**. - The hernia defect appears reduced externally, but the obstruction persists internally. *Incarcerated hernia* - An **incarcerated hernia** is the state where hernia contents are trapped and cannot be reduced back into the abdominal cavity. - This represents the **pre-existing condition** before the forceful reduction attempt was made. - While incarceration may have been present initially, the question asks about the outcome after the surgeon "forcefully reduces the sac" - this action creates a reduction en masse. *Sliding hernia* - A **sliding hernia** involves a retroperitoneal organ (colon, bladder, ovary) forming part of the hernia sac wall itself. - This is a structural variant unrelated to the reduction complication described in the scenario. *Maydl's hernia* - **Maydl's hernia** (W-hernia or retrograde strangulation) involves a loop of bowel where both ends remain in the abdomen while the intermediate segment is trapped in the hernia sac. - The strangulated segment is the intra-abdominal portion, not the part in the sac. - This is a specific type of hernia content configuration, not related to the reduction complication described.

Q: 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?

Esophageal rupture. ***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.

Q: A 25-year-old man presents to his gastroenterologist for trouble swallowing. The patient states that whenever he eats solids, he regurgitates them back up. Given this patient's suspected diagnosis, the gastroenterologist performs a diagnostic test. Several hours later, the patient presents to the emergency department with chest pain and shortness of breath. His temperature is 99.5°F (37.5°C), blood pressure is 130/85 mmHg, pulse is 60/min, respirations are 12/min, and oxygen saturation is 99% on room air. On physical exam, the patient demonstrates a normal cardiopulmonary exam. His physical exam demonstrates no tenderness of the neck, a normal oropharynx, palpable crepitus above the clavicles, and minor lymphadenopathy. Which of the following is the best next step in management?

Gastrografin swallow. ***Gastrografin swallow*** - This patient likely has an **esophageal perforation** following a diagnostic procedure, possibly **endoscopy or manometry** for suspected achalasia given the dysphagia, regurgitation, and subsequent symptoms. - A **Gastrografin swallow** is the best initial diagnostic step because it is water-soluble, allowing for detection of a leak without causing severe complications if aspirated into the lungs or mediastinum. *Barium swallow* - This is generally not recommended for suspected esophageal perforation as **barium** is a corrosive agent that can cause a severe inflammatory reaction known as **mediastinitis** if it leaks into the mediastinum. - While it offers superior mucosal detail, the risks associated with extravasation outweigh its benefits in this emergent setting. *Urgent surgery* - While **surgical repair** is the definitive treatment for significant esophageal perforations, it should only be performed after definitive diagnosis and localization of the perforation. - Performing surgery without imaging confirmation would be inappropriate and potentially lead to unnecessary intervention or missing the actual site of injury. *Ultrasound* - **Ultrasound** has limited utility in diagnosing esophageal perforation due to the location of the esophagus behind the trachea and sternum, making it largely inaccessible to acoustic waves. - It also cannot effectively detect the leakage of contrast material from the esophageal lumen.

Q: Which of the following is not done in carcinoma esophagus?

pH - metry/monitoring. ***pH - metry/monitoring*** - **pH metry/monitoring** is primarily used to diagnose **gastroesophageal reflux disease (GERD)**, which is not a direct diagnostic tool for esophageal carcinoma itself. - While GERD is a risk factor for **Barrett's esophagus** and subsequently adenocarcinoma of the esophagus, pH monitoring does not directly identify or stage the cancer. *CT chest* - **CT (Computed Tomography) chest** is routinely performed in esophageal carcinoma to assess the **local extent** of the tumor and identify potential **lymph node involvement** or **metastasis** to other organs. - It is crucial for **staging** the disease and guiding treatment decisions such as resectability. *PET scan* - A **PET (Positron Emission Tomography) scan** is highly useful for detecting **distant metastases** and identifying **occult disease** not visible on CT, especially in cases of suspected advanced esophageal carcinoma. - It helps in **accurate staging** and avoiding futile surgery in patients with metastatic disease. *Biopsy* - **Biopsy**, typically performed during endoscopy, is the **gold standard** for confirming the diagnosis of esophageal carcinoma by obtaining tissue for **histopathological examination**. - It identifies the cell type (e.g., adenocarcinoma, squamous cell carcinoma) and grade of the tumor, which is essential for treatment planning.

Q: 20 yr old female diagnosed previously with adenocarcinoma stomach and on examination following is seen;

Sister Mary joseph nodule. ***Sister Mary Joseph nodule*** - A **Sister Mary Joseph nodule** is a **metastatic lesion** to the umbilicus, often originating from an intra-abdominal malignancy such as **gastric adenocarcinoma**. - Its presence in a patient with a known history of **adenocarcinoma of the stomach** strongly suggests metastatic spread. *Infected umbilical hernia* - An **infected umbilical hernia** would typically present with signs of local infection such as **erythema**, **pain**, **tenderness**, and possibly **purulent discharge**. - While it might cause a lump, it does not explain the association with a prior diagnosis of gastric adenocarcinoma. *Umbilical granuloma* - An **umbilical granuloma** is a benign, inflamed overgrowth of tissue that presents as a **red, moist lump** at the umbilicus, often seen in infants. - It is not associated with malignancy and would not typically be found in a 20-year-old female in the context of gastric cancer. *Irish node* - An **Irish node** refers to a **left axillary lymph node metastasis** from gastric cancer. - While it signifies metastatic gastric cancer, it is distinct from an umbilical metastasis.

Q: Surgery is indicated in Ulcerative Colitis in all except?

Colonic polyp. ***Colonic polyp*** - **Colonic polyps** in ulcerative colitis (UC) are often managed with **endoscopic polypectomy** and surveillance; surgery (colectomy) for polyps is typically reserved for those with **high-grade dysplasia** or **colorectal cancer**. - Simple polyps themselves, without high-grade dysplasia or malignancy, do not independently warrant surgical intervention in UC. *Toxic megacolon* - **Toxic megacolon** is a severe and life-threatening complication of UC characterized by rapid **colonic dilation** and systemic toxicity, which carries a high risk of perforation and mortality. - Urgent surgical intervention, often **subtotal colectomy**, is indicated to prevent perforation and manage sepsis. *Colonic obstruction* - Although uncommon in UC, **colonic obstruction** can occur due to strictures, fibrosis, or malignant transformation, causing symptoms like abdominal pain, distension, and vomiting. - When medically refractory or associated with significant symptoms or suspicion of malignancy, surgery is often required to relieve the obstruction. *Failure of medical management* - **Chronic medically refractory UC** is one of the most common indications for elective colectomy, accounting for approximately 20-30% of surgical cases. - When patients fail to respond to maximal medical therapy including corticosteroids, immunomodulators, and biologics, or experience steroid-dependent disease with unacceptable side effects, surgical intervention with **proctocolectomy** may be required for definitive management.

Q: In gastric outlet obstruction in a peptic ulcer patient, the site of obstruction is most likely to be:

Pylorus. ***Pylorus*** - The **pylorus** is the most common site of obstruction in gastric outlet obstruction caused by **peptic ulcer disease**. This is due to **scarring** and **inflammation** from chronic ulcers in or near this region. - Obstruction at the pylorus impedes the normal flow of digested food from the stomach into the **duodenum**. *Duodenum* - While ulcers can occur in the **duodenum** (specifically the duodenal bulb), they are less likely to cause a complete obstruction of the gastric outlet. - **Duodenal ulcers** are more common than gastric ulcers, but rarely lead to severe narrowing causing outlet obstruction. *Antrum* - The **gastric antrum** is part of the stomach leading up to the pylorus. Although ulcers can occur here, obstruction is less common compared to the **pylorus** itself. - Obstruction due to antral pathology typically occurs closer to the **pyloric sphincter**. *Fundus* - The **fundus** is the upper, dome-shaped part of the stomach. It is very rarely the site of obstruction in the context of gastric outlet obstruction from peptic ulcer disease. - Obstructions in the fundus are usually associated with other pathologies, such as **tumors** or **gastric volvulus**, not peptic ulcers causing outlet obstruction.

Q: A patient who underwent gastrectomy develops sweating and diarrhea within 20 minutes after eating. What could be the cause?

Early dumping syndrome. ***Early dumping syndrome*** - Occurs **15-30 minutes after eating** in patients who have undergone **gastric surgery**, such as gastrectomy, due to rapid emptying of hyperosmolar chyme into the small intestine. - Symptoms include **sweating**, **diarrhea**, **nausea**, **cramping**, and **tachycardia** due to fluid shifts and hormonal responses. *Late dumping syndrome* - Typically occurs **1-3 hours after eating**, not within 20 minutes. - It is characterized by **hypoglycemia** due to an exaggerated insulin response to the rapid absorption of glucose, leading to symptoms like weakness, confusion, and tremor. *Hyperglycemia* - While a rapid influx of glucose can initially cause hyperglycemia, the symptoms described (sweating, diarrhea) are more indicative of the systemic effects of rapid gastric emptying rather than simple hyperglycemia itself. - Hyperglycemia post-meal is a normal physiological response, and the constellation of symptoms points to a post-surgical complication. *Hypoglycemia* - Hypoglycemia is characteristic of **late dumping syndrome**, occurring hours after a meal, not within 20 minutes. - The symptoms of early dumping syndrome are primarily driven by fluid shifts and neurovascular responses, not low blood glucose.

Q: A patient presents with acute appendicitis. What is NOT to be done?

Check for visual acuity. ***Check for visual acuity*** - **Visual acuity** assessment is not relevant to the diagnosis or management of **acute appendicitis**. - This examination is typically performed in cases of suspected eye injury, vision changes, or neurological issues that affect vision. - In the context of acute appendicitis, checking visual acuity would be inappropriate and waste valuable time. *Give antibiotics* - **Antibiotics** are crucial in managing **acute appendicitis** to prevent progression to perforation and reduce postoperative infection risk. - They are typically administered preoperatively and continued postoperatively, especially in cases of complicated appendicitis. - Broad-spectrum antibiotics covering **gram-negative organisms and anaerobes** are standard practice. *Do primary survey* - A **primary survey** (ABCDE approach) is essential in any emergent patient presentation to assess and manage immediate **life-threatening conditions**. - While appendicitis itself may not be immediately life-threatening, ensuring patient stability and ruling out other serious conditions is critical. - This is standard emergency medicine practice and should always be performed. *Perform appendectomy* - **Appendectomy** (surgical removal of the appendix) is the definitive treatment for **acute appendicitis**. - This is the standard of care and should be performed once the diagnosis is confirmed and the patient is stable. - Either open or laparoscopic approach can be used depending on clinical factors and surgeon expertise.

Question 1

Which of the following is the most commonly performed repair for a direct inguinal hernia?

Accepted Answer

Lichtenstein repair

Answer

Bassini's repair

Answer

Herniotomy

Answer

All of the options

Question 2

A surgeon examined the case of hernia. Forcefully reduces the sac in abdominal cavity, without actually pushing back the contents. Identify the type of hernia.

Accepted Answer

Reduction en masse

Answer

Sliding hernia

Answer

Incarcerated hernia

Answer

Maydl's hernia

Question 3

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?

Accepted Answer

Esophageal rupture

Answer

Esophageal varices

Answer

Tension pneumothorax

Answer

Mallory Weiss syndrome

Question 4

A 25-year-old man presents to his gastroenterologist for trouble swallowing. The patient states that whenever he eats solids, he regurgitates them back up. Given this patient's suspected diagnosis, the gastroenterologist performs a diagnostic test. Several hours later, the patient presents to the emergency department with chest pain and shortness of breath. His temperature is 99.5°F (37.5°C), blood pressure is 130/85 mmHg, pulse is 60/min, respirations are 12/min, and oxygen saturation is 99% on room air. On physical exam, the patient demonstrates a normal cardiopulmonary exam. His physical exam demonstrates no tenderness of the neck, a normal oropharynx, palpable crepitus above the clavicles, and minor lymphadenopathy. Which of the following is the best next step in management?

Accepted Answer

Gastrografin swallow

Answer

Barium swallow

Answer

Urgent surgery

Answer

Ultrasound

Question 5

Which of the following is not done in carcinoma esophagus?

Accepted Answer

pH - metry/monitoring

Answer

CT chest

Answer

PET scan

Answer

Biopsy

Question 6

20 yr old female diagnosed previously with adenocarcinoma stomach and on examination following is seen;

Accepted Answer

Sister Mary joseph nodule

Answer

Infected umbilical hernia

Answer

Umbilical granuloma

Answer

Irish node

Question 7

Surgery is indicated in Ulcerative Colitis in all except?

Accepted Answer

Colonic polyp

Answer

Toxic megacolon

Answer

Colonic obstruction

Answer

Failure of medical management

Question 8

In gastric outlet obstruction in a peptic ulcer patient, the site of obstruction is most likely to be:

Accepted Answer

Pylorus

Answer

Duodenum

Answer

Antrum

Answer

Fundus

Question 9

A patient who underwent gastrectomy develops sweating and diarrhea within 20 minutes after eating. What could be the cause?

Accepted Answer

Early dumping syndrome

Answer

Late dumping syndrome

Answer

Hyperglycemia

Answer

Hypoglycemia

Question 10

A patient presents with acute appendicitis. What is NOT to be done?

Accepted Answer

Check for visual acuity

Answer

Give antibiotics

Answer

Do primary survey

Answer

Perform appendectomy

Gastrointestinal Surgery — MCQs

Gastrointestinal Surgery — MCQs

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