Gastrointestinal Surgery Practice Questions

Q: Lockwood repair is performed for which condition?

Femoral hernia. **Explanation:** **Lockwood’s infra-inguinal approach** is a classic surgical technique used for the repair of a **femoral hernia**. In this procedure, the incision is made directly over the femoral swelling, below and parallel to the inguinal ligament. It is primarily indicated for elective cases or when the diagnosis of a femoral hernia is certain. The repair involves reducing the hernial sac and approximating the inguinal ligament to the pectineal (Cooper’s) ligament using non-absorbable sutures to close the femoral canal. **Analysis of Incorrect Options:** * **Appendicitis:** Managed via appendectomy (e.g., McBurney’s or Lanz incision). While a femoral hernia can occasionally contain the appendix (De Garengeot hernia), Lockwood repair refers specifically to the hernia repair technique, not the treatment for primary appendicitis. * **Deep Vein Thrombosis (DVT):** This is a medical/vascular condition managed with anticoagulants or thrombolysis, not a surgical "repair" like Lockwood’s. * **Sigmoid Volvulus:** Managed via sigmoidoscopic detorsion or resection (e.g., Hartmann’s procedure), not a groin-based hernia repair. **High-Yield Clinical Pearls for NEET-PG:** * **Three Approaches to Femoral Hernia:** 1. **Lockwood:** Infra-inguinal (Low) approach. 2. **Lotheissen:** Trans-inguinal approach (through the posterior wall of the inguinal canal). 3. **McEvedy:** High/Supra-inguinal approach (vertical incision; best for strangulated hernias as it provides better exposure to the bowel). * Femoral hernias are more common in **females** and have the **highest risk of strangulation** among all hernias due to the narrow, rigid boundaries of the femoral canal.

Q: Upper GI endoscopy is indicated in all of the following conditions, except:

Corrosive ingestion: delayed phase. **Explanation:** Upper Gastrointestinal (UGI) endoscopy is a vital diagnostic and therapeutic tool, but its timing is critical, especially in cases of chemical injury. **Why Option D is the correct answer:** In **corrosive ingestion**, the timing of endoscopy is strictly defined. It is indicated within the first **12–24 hours** (early phase) to assess the severity of the injury. However, it is **strictly contraindicated in the delayed phase (5–15 days)**. During this period, the necrotic tissue sloughs off, and the esophageal wall is at its thinnest and weakest due to intense inflammation and collagen remodeling. Performing an endoscopy during this "vulnerable window" carries a high risk of **iatrogenic perforation**. **Why the other options are incorrect:** * **Peptic Ulceration:** Endoscopy is the gold standard for diagnosis, allowing for direct visualization, biopsy (to rule out malignancy or *H. pylori*), and therapeutic intervention (e.g., clipping or cauterization of bleeding vessels). * **Achalasia Cardiae:** Endoscopy is essential to rule out "pseudoachalasia" (malignancy at the GE junction) and to visualize the dilated esophagus and retained food particles. * **Barrett’s Esophagus:** Endoscopy with biopsy is mandatory for diagnosis (identifying intestinal metaplasia) and for long-term surveillance to monitor for progression to adenocarcinoma. **Clinical Pearls for NEET-PG:** * **Corrosive Injury:** The most common site of stricture is the **esophagus** (alkali) or **antrum** (acid). * **Contraindications to UGI Endoscopy:** Suspected perforation, hemodynamic instability, and the subacute/delayed phase of corrosive injury. * **Water-soluble contrast (Gastrografin)** is preferred over Barium if perforation is suspected during any stage.

Q: Phytobezoars are composed of?

Vegetable Matter. **Explanation:** A **bezoar** is a solid mass of indigestible material that accumulates in the digestive tract, most commonly in the stomach. They are classified based on their primary composition. **1. Why "Vegetable Matter" is correct:** **Phytobezoars** are the most common type of bezoar. They are composed of indigestible plant fibers such as cellulose, hemicellulose, lignin, and tannins. These are frequently found in patients with impaired gastric motility (e.g., gastroparesis) or following gastric surgeries like vagotomy or antrectomy, which reduce acid secretion and mechanical churning. A specific subtype, the *diospyrobezoar*, is formed from unripened persimmons. **2. Why the other options are incorrect:** * **A. Hair:** These are called **Trichobezoars**. They are typically seen in young females with psychiatric disorders (trichotillomania and trichophagia). A large trichobezoar extending into the small intestine is known as **Rapunzel Syndrome**. * **C. Undigested food:** While bezoars are made of food components, "Phyto-" specifically refers to plant/vegetable origin. General undigested food is too broad a term. * **D. Desquamated epithelial cells:** These are not a primary component of bezoars. However, **Lactobezoars** (composed of undigested milk curds) are seen in infants. **High-Yield Clinical Pearls for NEET-PG:** * **Most common site:** Stomach. * **Most common symptom:** Gastric outlet obstruction or vague abdominal pain. * **Gold Standard Diagnosis:** Upper GI Endoscopy. * **Management:** Small phytobezoars can sometimes be dissolved using **Cellulase** or **Coca-Cola lavage**. Large or obstructive masses require endoscopic removal or surgical laparotomy.

Q: A 50-year-old male patient presented with progressive dysphagia for 4 months, more pronounced for solids than liquids. He also reported significant weight loss, loss of appetite, odynophagia, a hoarse voice, and cervical lymphadenopathy. Upper GI endoscopy and barium studies were performed, and a biopsy of the lesion was sent for HPE. All of the following are risk factors for the suspected condition, except:

Barrett's esophagus. ### Explanation The clinical presentation—progressive dysphagia (solids > liquids), weight loss, hoarse voice (suggesting recurrent laryngeal nerve involvement), and cervical lymphadenopathy—strongly points toward **Squamous Cell Carcinoma (SCC)** of the esophagus, typically involving the upper or middle third. **1. Why Barrett’s Esophagus is the Correct Answer:** Barrett’s esophagus is a metaplastic change (stratified squamous to columnar epithelium) resulting from chronic GERD. It is the primary precursor for **Adenocarcinoma**, not Squamous Cell Carcinoma. Since the clinical features (hoarseness and cervical nodes) suggest a proximal/mid-esophageal lesion, SCC is the diagnosis, making Barrett’s the "except" option. **2. Analysis of Incorrect Options (Risk Factors for SCC):** * **Smoking:** A major risk factor for SCC. Tobacco contains nitrosamines that are directly carcinogenic to the esophageal squamous lining. * **Plummer-Vinson Syndrome:** Characterized by the triad of iron-deficiency anemia, esophageal webs, and glossitis. It carries a high risk of developing SCC in the post-cricoid region. * **Achalasia Cardia:** Chronic stasis of food leads to esophagitis and mucosal irritation, increasing the risk of SCC (usually after 15–20 years of disease). **3. NEET-PG High-Yield Pearls:** * **Most common site:** Worldwide, SCC is most common in the **middle third**; Adenocarcinoma is most common in the **lower third**. * **Most common histological type:** Globally, SCC is most common; however, in Western countries, Adenocarcinoma is rising. * **Tylosis (Palmar-plantar keratoderma):** An autosomal dominant condition with nearly 100% lifetime risk of esophageal SCC. * **Investigation of choice:** Upper GI Endoscopy + Biopsy. * **Staging:** EUS (Endoscopic Ultrasound) is best for T and N staging; PET-CT is best for distant metastasis (M).

Q: Uncommon complication of Meckel's diverticulum is:

Malignancy. **Explanation:** Meckel’s diverticulum is the most common congenital anomaly of the gastrointestinal tract, resulting from the failure of the vitelline duct to obliterate. While it is often asymptomatic, complications occur in about 4% of cases. **Why Malignancy is the Correct Answer:** Malignancy is the **least common** complication of Meckel’s diverticulum, occurring in less than 0.5% to 3% of symptomatic cases. When it does occur, the most frequent histological type is a **Carcinoid tumor**, followed by adenocarcinoma, leiomyosarcoma, and lymphoma. Due to its extreme rarity compared to inflammatory or obstructive complications, it is considered the "uncommon" choice. **Analysis of Incorrect Options:** * **A. Intussusception:** This is a common cause of intestinal obstruction in children with Meckel’s. The diverticulum acts as a "lead point," causing the ileum to invaginate into the distal bowel. * **B. Diverticulitis:** This occurs when the neck of the diverticulum is obstructed (similar to appendicitis). It is a frequent presentation in adults, often mimicking the clinical features of acute appendicitis. * **D. Bleeding:** This is the **most common** complication in the pediatric population. It occurs due to acid secretion from **ectopic gastric mucosa**, which causes ulceration of the adjacent ileal mucosa. **High-Yield Clinical Pearls for NEET-PG:** * **Rule of 2s:** 2% of the population, 2 inches long, 2 feet from the ileocecal valve, 2 types of ectopic tissue (Gastric > Pancreatic), and presents before age 2. * **Most common presentation in children:** Painless lower GI bleeding (Hematochezia). * **Most common presentation in adults:** Intestinal obstruction. * **Investigation of choice:** Meckel’s Scan (Technetium-99m pertechnetate scan) to detect ectopic gastric mucosa.

Q: What is the investigation of choice for a small intestine tumor?

CT scan with contrast. **Explanation:** The investigation of choice for a small intestine tumor is a **Contrast-Enhanced CT (CECT) scan**. **1. Why CT Scan with Contrast is Correct:** Small bowel tumors are often difficult to visualize due to the length and overlapping loops of the intestine. CECT is the gold standard because it provides high-resolution cross-sectional imaging. It can identify the primary tumor, assess the depth of wall invasion, and most importantly, evaluate for **extraluminal spread**, lymphadenopathy, and distant metastasis (staging). In cases of suspected neuroendocrine tumors or lymphomas, CT helps in identifying the characteristic mesenteric "desmoplastic reaction" or "sandwich sign." **2. Why Other Options are Incorrect:** * **Barium meal follow-through:** While historically used to find filling defects or "apple-core" lesions, it has low sensitivity for small or extraluminal masses and cannot provide staging information. * **Echocardiogram:** This is used to evaluate heart function. It is only relevant in small bowel cases if a patient has **Carcinoid Syndrome** to check for right-sided heart valve lesions. * **X-ray abdomen:** This is a screening tool for complications like intestinal obstruction or perforation but cannot diagnose or characterize a tumor. **Clinical Pearls for NEET-PG:** * **Most common benign tumor:** Leiomyoma (overall), but Adenoma is common in the duodenum. * **Most common malignant tumor:** Adenocarcinoma (most common in duodenum/jejunum); however, **Carcinoid** is the most common in the ileum. * **Investigation for obscure GI bleed:** Video Capsule Endoscopy (VCE). * **Gold standard for localization of small bowel NETs:** Somatostatin Receptor Scintigraphy (Octreoscan) or 68Ga-DOTATOC PET/CT.

Q: A patient who underwent a Billroth II gastrectomy for peptic ulcer disease presents with postprandial pain. Endoscopy reveals oedematous and inflamed gastric mucosa. What is the most likely diagnosis?

Alkaline gastritis. **Explanation:** **Alkaline Reflux Gastritis (Bile Reflux Gastritis)** is a common complication following gastric surgeries that bypass or destroy the pylorus, such as the **Billroth II gastrectomy**. 1. **Why it is correct:** In a Billroth II reconstruction, the pylorus is removed, allowing the alkaline contents of the duodenum (bile, pancreatic enzymes, and succus entericus) to reflux freely into the gastric remnant. This chronic exposure to bile acids and lysolecithin strips the protective gastric mucosal barrier, leading to chemical injury. Clinically, this presents as **postprandial epigastric pain** (often not relieved by vomiting) and weight loss. Endoscopically, the hallmark is **beefy red, oedematous, and inflamed gastric mucosa**. 2. **Why other options are wrong:** * **Dumping Syndrome:** Presents with vasomotor symptoms (palpitations, sweating, dizziness) and abdominal cramping/diarrhea shortly after meals due to rapid gastric emptying. It does not typically show inflammatory changes on endoscopy. * **Gastroparesis:** Refers to delayed gastric emptying. While it causes postprandial fullness and vomiting, it is characterized by retained food material rather than specific mucosal inflammation. **High-Yield Clinical Pearls for NEET-PG:** * **Classic Triad:** Postprandial epigastric pain, bile reflux/vomiting, and weight loss. * **Key Distinction:** Unlike peptic ulcer pain, the pain of alkaline gastritis is typically **not relieved** by antacids or vomiting. * **Treatment:** Medical management with bile acid sequestrants (Cholestyramine) is often ineffective. The definitive surgical treatment is a **Roux-en-Y gastrojejunostomy**, which diverts bile 40–60 cm away from the gastric remnant.

Q: A hernia sac contains only a portion of the circumference of the intestine. What is this type of hernia called?

Richter's hernia. ### Explanation **1. Why Richter’s Hernia is Correct:** A **Richter’s hernia** occurs when only a **portion of the circumference** of the bowel wall (usually the antimesenteric border) becomes trapped within a hernia sac. Because the entire lumen is not compromised, the patient may not present with classic signs of intestinal obstruction (like vomiting or absolute constipation), which often leads to a **dangerous delay in diagnosis**. However, the trapped portion can rapidly undergo strangulation and gangrene, leading to perforation. It is most commonly seen in femoral and obturator hernias. **2. Why the Other Options are Incorrect:** * **Littre’s hernia:** This refers to a hernia sac that contains a **Meckel’s diverticulum**. It is a common "distractor" in exams; remember: *Richter = Wall, Littre = Meckel’s.* * **Spigelian hernia:** This is an acquired ventral hernia occurring through the **linea semilunaris** (at the level of the arcuate line). It is an anatomical location, not a description of the sac contents. * **Lumbar hernia:** These occur through defects in the posterior abdominal wall. Examples include **Grynfeltt-Lesshaft** (superior triangle) and **Petit’s** (inferior triangle) hernias. **3. NEET-PG High-Yield Pearls:** * **Maydl’s Hernia:** A "W-shaped" hernia where two loops of bowel are in the sac, but the intervening loop inside the abdomen is the one that becomes gangrenous. * **Amyand’s Hernia:** The hernia sac contains the **Appendix** (usually within an inguinal hernia). * **De Garengeot Hernia:** The appendix is trapped within a **femoral** hernia sac. * **Clinical Warning:** In Richter’s hernia, local signs of strangulation (redness, pain) may appear before systemic signs of obstruction. Always maintain a high index of suspicion.

Question 1

Lockwood repair is performed for which condition?

Accepted Answer

Femoral hernia

Answer

Appendicitis

Answer

Deep vein thrombosis

Answer

Sigmoid volvulus

Question 2

Upper GI endoscopy is indicated in all of the following conditions, except:

Accepted Answer

Corrosive ingestion: delayed phase

Answer

Peptic ulceration

Answer

Achalasia cardiae

Answer

Barrett's esophagus

Question 3

Phytobezoars are composed of?

Accepted Answer

Vegetable Matter

Answer

Hair

Answer

Undigested food

Answer

Desquamated epithelial cells

Question 4

All are true statements about hernias EXCEPT?

Accepted Answer

An abdominal hernia needs no repair.

Answer

A femoral hernia needs repair.

Answer

A small hernia is more dangerous than a large hernia.

Answer

A painful strangulated hernia should be repaired even after being reduced after anesthetics and analgesics.

Question 5

A 50-year-old male patient presented with progressive dysphagia for 4 months, more pronounced for solids than liquids. He also reported significant weight loss, loss of appetite, odynophagia, a hoarse voice, and cervical lymphadenopathy. Upper GI endoscopy and barium studies were performed, and a biopsy of the lesion was sent for HPE. All of the following are risk factors for the suspected condition, except:

Accepted Answer

Barrett's esophagus

Answer

Smoking

Answer

Plummer-Vinson syndrome

Answer

Achalasia cardia

Question 6

Uncommon complication of Meckel's diverticulum is:

Accepted Answer

Malignancy

Answer

Intussusception

Answer

Diverticulitis

Answer

Increased bleeding

Question 7

What is the investigation of choice for a small intestine tumor?

Accepted Answer

CT scan with contrast

Answer

Barium meal follow-through

Answer

Echocardiogram

Answer

X-ray abdomen

Question 8

A 25-year-old man presents with significant upper gastrointestinal hemorrhage on post-injury day 4 following an automobile accident. Injuries sustained included bilateral closed femur fractures, left pulmonary contusion, and closed head injury. Endoscopic examination reveals an area of confluent ulceration with bleeding in the gastric fundus, and endoscopic hemostasis has failed. What is the appropriate immediate management?

Accepted Answer

Selective arterial infusion of vasopressin into the left gastric artery

Answer

Lavage of gastric contents with iced saline

Answer

Urgent total gastrectomy

Answer

Insertion of a Sengstaken-Blakemore balloon

Question 9

A patient who underwent a Billroth II gastrectomy for peptic ulcer disease presents with postprandial pain. Endoscopy reveals oedematous and inflamed gastric mucosa. What is the most likely diagnosis?

Accepted Answer

Alkaline gastritis

Answer

Dumping syndrome

Answer

Gastroparesis

Answer

None of the above

Question 10

A hernia sac contains only a portion of the circumference of the intestine. What is this type of hernia called?

Accepted Answer

Richter's hernia

Answer

Littre's hernia

Answer

Spigelian hernia

Answer

Lumbar hernia

Gastrointestinal Surgery — MCQs

Gastrointestinal Surgery — MCQs

On this page

Practice by Chapter

Want unlimited practice?