Gastrointestinal Surgery Practice Questions

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.

Q: A patient presents with signs of bowel obstruction following a recent appendectomy. What is the most likely cause?

Adhesive bands. ***Adhesive bands*** - **Adhesive bands** (scar tissue) are the most common cause of small bowel obstruction after abdominal surgery, including appendectomy. - These adhesions can form an internal trap or kink the bowel, leading to obstruction. *Hernia* - While hernias can cause bowel obstruction, they typically present as a palpable **bulge** or a history consistent with a new defect, which is not mentioned. - A hernia resulting from a recent appendectomy wound site is possible but less likely than adhesions as a cause of obstruction in the immediate post-operative period. *Tumor* - **Tumors** generally cause a more gradual onset of obstructive symptoms and are less likely to be the cause of acute obstruction shortly after an appendectomy. - No risk factors for a tumor, such as age or specific medical history, are provided. *Intussusception* - **Intussusception** is more common in **children** and involves one segment of the intestine telescoping into another. - It is a rare cause of bowel obstruction in adults and is not typically associated with a recent appendectomy.

Q: The most appropriate first-line investigation to be performed in suspected cases of gastric cancer is:

Endoscopy. ***Endoscopy*** - **Endoscopy with biopsy** is the most definitive first-line investigation for suspected gastric cancer as it allows direct visualization of the gastric mucosa and tissue sampling for histological confirmation. - It is crucial for early detection, staging, and guiding subsequent management strategies in patients suspected of having gastric malignancy. *Double contrast radiography* - **Double contrast radiography** (barium swallow) can reveal suspicious mucosal abnormalities but is less sensitive and specific than endoscopy for detecting and characterizing early gastric lesions. - It does not allow for **biopsy**, which is essential for definitive diagnosis of cancer. *Plain radiography* - **Plain radiography** (X-ray) has very limited utility in diagnosing gastric cancer as it cannot visualize mucosal lesions or provide detailed information about the gastric wall. - It is primarily used for detecting complications like **perforation** or **obstruction**, rather than primary diagnosis. *CT Scan* - A **CT scan** is valuable for staging gastric cancer after diagnosis, assessing local invasion, lymph node involvement, and distant metastases. - However, it is not the first-line diagnostic modality because it cannot directly visualize early mucosal lesions or provide **histological confirmation** via biopsy.

Q: What is another name for Pantaloon hernia?

Saddle bag hernia. ***Saddle bag hernia*** - A **Pantaloon hernia** is characterized by having both a **direct** and an **indirect inguinal hernia** coexisting side-by-side, straddling the **inferior epigastric artery**. - The term **"saddle bag hernia"** is the most commonly used alternate name, describing how the hernia straddles the inferior epigastric artery like **saddlebags** over a horse. - This is the established synonym in surgical literature and examination contexts. *Dual hernia* - While descriptive of the "dual" or two-sided nature (direct + indirect components), this is **not the recognized alternate name** for Pantaloon hernia. - It is an anatomical description rather than an established medical terminology. *Retrosternal hernia* - A **retrosternal hernia** (or **Morgagni hernia**) is a type of **diaphragmatic hernia** where abdominal contents protrude into the chest through a defect behind the sternum. - This is unrelated to inguinal hernias and describes a completely different anatomical location and type of defect. *Bochdalek's hernia* - **Bochdalek's hernia** is another type of **diaphragmatic hernia**, typically occurring posterolaterally through a defect in the diaphragm, often presenting in infants. - It involves the displacement of abdominal organs into the thoracic cavity and is distinct from inguinal hernias.

Q: Most prevalent symptom in patients of leiomyoma of esophagus is

Dysphagia. ***Dysphagia*** - **Dysphagia (difficulty swallowing)** is the most common presenting symptom in patients with esophageal leiomyoma. - This occurs because the tumor, even if benign, can grow large enough to cause **mechanical obstruction** of the esophageal lumen. *Pain* - While some patients may experience chest pain or discomfort, it is generally **less frequent** and less severe than dysphagia. - Pain is more commonly associated with rapidly growing tumors or complications like **ulceration**, which are rare for leiomyomas. *Pyrosis* - **Pyrosis (heartburn)** is not a typical or prevalent symptom of esophageal leiomyomas. - Heartburn is more commonly associated with **gastroesophageal reflux disease (GERD)**. *Weight loss* - **Weight loss** is usually a symptom of more advanced or aggressive esophageal pathologies, such as **malignant tumors**. - Although severe dysphagia can eventually lead to reduced oral intake and weight loss, it is not often the initial or most prevalent symptom in benign leiomyomas.

Q: Most common type of Hiatal hernia is

Sliding. ***Sliding*** - **Type I hiatal hernia** is known as a sliding hiatal hernia, where the **gastroesophageal junction** and part of the stomach slide up into the mediastinum. - This is the **most common type**, accounting for over 90% of all hiatal hernias. *Rolling* - **Type II hiatal hernia**, or **paraesophageal hernia**, involves the fundus of the stomach herniating alongside the esophagus through the hiatus while the gastroesophageal junction remains in its normal anatomical position. - It is much **less common** than the sliding type and poses a higher risk of complications like **volvulus** or incarceration. *Mixed* - **Type III hiatal hernia** is a **mixed hernia**, combining features of both sliding and rolling types. - In this type, the **gastroesophageal junction** is displaced into the chest cavity, and another part of the stomach, typically the fundus, herniates next to it. *Type IV* - **Type IV hiatal hernia** is the rarest type, where other abdominal organs such as the **colon, spleen, pancreas, or small bowel** herniate through the diaphragmatic defect along with the stomach. - This type represents a complex hernia with significant risk of complications.

Q: Which of the following statements is NOT true about highly selective vagotomy?

Nerves of Latarjet are sacrificed. ***Nerves of Latarjet are sacrificed*** - Highly selective vagotomy (HSV) **preserves the nerves of Latarjet** to maintain pyloric function and gastric emptying. - Sacrificing these nerves would lead to impaired gastric emptying and necessitates a **drainage procedure**, thus transforming it into a truncal or selective vagotomy. *Recurrence rates are higher than vagotomy and drainage and vagotomy and antrectomy* - This statement is **true** because HSV is less complete in denervating the stomach, leading to higher rates of **ulcer recurrence** compared to more extensive vagotomies. - While it has a lower incidence of side effects, its **reduced efficacy** in preventing recurrence is a known trade-off. *Entire gastric reservoir capacity is preserved* - This statement is **true** because HSV specifically denervates only the acid-secreting parietal cell mass, preserving the **innervation to the antrum** and pylorus. - This preservation maintains normal **gastric motility** and reservoir function, preventing post-vagotomy syndromes. *It is also known as parietal cell vagotomy* - This statement is **true** because highly selective vagotomy targets only the nerve branches supplying the **parietal cell-containing** fundus and body of the stomach. - The goal is to reduce acid secretion without affecting the nerves responsible for **gastric emptying** or antral function.

Q: What is the most commonly practiced operative procedure for a perforated duodenal ulcer?

Graham's omentum patch repair. ***Graham's omentum patch repair*** - This procedure involves covering the perforation with a piece of **omentum** secured with sutures, which **seals the defect** and allows healing with subsequent medical management. - It is currently the **most common and preferred operative approach** for perforated duodenal ulcers due to its simplicity, effectiveness, and lower morbidity compared to more extensive procedures. - The procedure is typically followed by **H. pylori eradication** and **proton pump inhibitor therapy** for ulcer healing. *Vagotomy and pyloroplasty* - This was a common procedure in the past, primarily for **recurrent or refractory ulcers** not responding to medical therapy, aiming to reduce acid secretion. - It is **more extensive** than a simple patch repair and carries higher risks, making it less suitable as a first-line treatment for an acute perforation. - With effective modern medical management of ulcers, definitive acid-reducing procedures are rarely needed. *Vagotomy and antrectomy* - This even more extensive procedure involves removing the **antrum of the stomach** and performing a **vagotomy**, significantly reducing acid production. - It was typically reserved for **severe, complicated, or recurrent ulcers** and is rarely performed for acute perforation due to its significant surgical morbidity and the success of medical acid suppression. *Vagotomy and perforation closure* - While closure of the perforation is essential, simply closing it with a vagotomy (without an omental patch) is **not the standard operative procedure**. - The **omental patch is crucial** for reinforcing the repair and reducing leak rates, which simple closure alone does not provide effectively.

Question 1

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 2

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

Question 3

A patient presents with signs of bowel obstruction following a recent appendectomy. What is the most likely cause?

Accepted Answer

Adhesive bands

Answer

Hernia

Answer

Tumor

Answer

Intussusception

Question 4

The most appropriate first-line investigation to be performed in suspected cases of gastric cancer is:

Accepted Answer

Endoscopy

Answer

Plain radiography

Answer

CT Scan

Answer

Double contrast radiography

Question 5

What is another name for Pantaloon hernia?

Accepted Answer

Saddle bag hernia

Answer

Retrosternal hernia

Answer

Dual hernia

Answer

Bochdalek's hernia

Question 6

Most prevalent symptom in patients of leiomyoma of esophagus is

Accepted Answer

Dysphagia

Answer

Pain

Answer

Pyrosis

Answer

Weight loss

Question 7

Early and late suspected instrumental perforation of the oesophagus should first be assessed using?

Accepted Answer

Water soluble contrast swallow

Answer

CT Scan

Answer

MRI

Answer

Dilute barium swallow

Question 8

Most common type of Hiatal hernia is

Accepted Answer

Sliding

Answer

Rolling

Answer

Mixed

Answer

Type IV

Question 9

Which of the following statements is NOT true about highly selective vagotomy?

Accepted Answer

Nerves of Latarjet are sacrificed

Answer

Entire gastric reservoir capacity is preserved

Answer

It is also known as parietal cell vagotomy

Answer

Recurrence rates are higher than vagotomy and drainage and vagotomy and antrectomy.

Question 10

What is the most commonly practiced operative procedure for a perforated duodenal ulcer?

Accepted Answer

Graham's omentum patch repair

Answer

Vagotomy and pyloroplasty

Answer

Vagotomy and antrectomy

Answer

Vagotomy and perforation closure

Gastrointestinal Surgery — MCQs

Gastrointestinal Surgery — MCQs

On this page

Practice by Chapter

Want unlimited practice?