Gastrointestinal Surgery Practice Questions

Q: Which of the following statements are true about Barrett's esophagus?

Biopsy is necessary to diagnose it.. **Explanation:** **Barrett’s Esophagus (BE)** is defined as the metaplastic replacement of the normal stratified squamous epithelium of the lower esophagus with **specialized columnar epithelium** (containing Goblet cells) due to chronic gastroesophageal reflux disease (GERD). **Why Option D is Correct:** While endoscopy can suggest BE by identifying "salmon-pink" tongues of mucosa extending above the gastroesophageal junction, the **gold standard and definitive requirement for diagnosis is a biopsy.** Histological confirmation of **intestinal metaplasia** (presence of Goblet cells) is mandatory to distinguish it from gastric metaplasia and to assess for dysplasia. **Analysis of Incorrect Options:** * **Option A:** This is a tricky distractor. While BE is indeed a premalignant condition, in the context of NEET-PG, if a question asks for the "most true" or "definitive" statement regarding diagnosis, the histological requirement (Option D) takes precedence. (Note: Some examiners consider A true, but D is the clinical prerequisite). * **Option B:** BE predisposes specifically to **Adenocarcinoma**, not squamous cell carcinoma. Chronic irritation from alcohol and smoking typically leads to squamous cell carcinoma. * **Option C:** Endoscopy alone cannot diagnose BE; it can only raise suspicion. Visual findings must be confirmed histologically to rule out mimics like esophagitis or a hiatal hernia. **High-Yield Clinical Pearls for NEET-PG:** * **Prague Criteria:** Used for endoscopic grading (C = circumferential length; M = maximal extent). * **Surveillance:** Patients without dysplasia require endoscopy every 3–5 years. * **Management:** High-grade dysplasia is managed with endoscopic mucosal resection (EMR) or radiofrequency ablation (RFA). * **Segment Length:** "Short-segment" BE is 3 cm (higher malignancy risk).

Q: All of the following is true about achalasia cardia except?

Males are affected more than females.. **Explanation:** Achalasia cardia is a primary esophageal motility disorder characterized by the failure of the Lower Esophageal Sphincter (LES) to relax and the absence of progressive peristalsis in the distal esophagus. **Why Option B is the Correct Answer (The False Statement):** Achalasia cardia affects **males and females equally** (1:1 ratio). There is no significant gender predilection. It typically presents between the ages of 25 and 60 years. **Analysis of Other Options:** * **Option A:** The hallmark pathophysiology is the selective loss of inhibitory neurons (containing Nitric Oxide and VIP) in the myenteric (Auerbach’s) plexus, leading to a **failure of the LES to relax** in response to swallowing. * **Option C:** On a chest X-ray, the **absence of a gastric air bubble** is a classic sign. This occurs because the hypertensive LES prevents air from entering the stomach. Other X-ray findings include a widened mediastinum and an air-fluid level in the esophagus. * **Option D:** **Esophageal Manometry** is the **gold standard (most confirmatory)** investigation. It typically shows incomplete LES relaxation (residual pressure >10 mmHg) and aperistalsis in the smooth muscle portion of the esophagus. **Clinical Pearls for NEET-PG:** * **Barium Swallow:** Shows the classic **"Bird’s Beak"** or "Rat-tail" appearance. * **Chagas Disease:** Caused by *Trypanosoma cruzi*, it can mimic achalasia (Secondary Achalasia). * **Heller’s Myotomy:** The surgical treatment of choice, usually performed with a partial fundoplication (Dor or Toupet) to prevent reflux. * **POEM (Per-Oral Endoscopic Myotomy):** A newer, minimally invasive endoscopic treatment option. * **Complication:** Long-standing achalasia increases the risk of **Squamous Cell Carcinoma** of the esophagus due to chronic stasis and irritation.

Q: A perforated peptic ulcer is treated by all except?

Under running of the vessel. **Explanation:** The management of a **perforated peptic ulcer (PPU)** focuses on sealing the perforation and treating the underlying cause. **Why Option A is the Correct Answer (The "Except"):** **Under-running of the vessel** is the surgical technique used to achieve hemostasis in a **bleeding** peptic ulcer (typically involving the gastroduodenal artery in posterior duodenal ulcers). It is not a treatment for perforation. In a perforation, the primary goal is closure of the defect, not vessel ligation. **Analysis of Incorrect Options (Treatments for PPU):** * **Omental Patch (Graham’s Patch):** This is the **gold standard** surgical treatment for a perforated duodenal ulcer. A piece of live omentum is placed over the perforation and secured with sutures. * **H. pylori Eradication:** Since *H. pylori* infection is a leading cause of peptic ulcers, triple therapy (PPI + Clarithromycin + Amoxicillin) is mandatory post-operatively to prevent recurrence. * **Highly Selective Vagotomy (HSV):** While less common in the era of PPIs, HSV (or other definitive acid-reduction surgeries) can be performed concurrently with the patch repair in stable patients with a long history of chronic ulcer disease to reduce acid secretion. **NEET-PG High-Yield Pearls:** * **Investigation of Choice:** Erect X-ray Chest (shows air under the diaphragm in 70-80% of cases). * **Most Common Site of Perforation:** Anterior wall of the first part of the duodenum. * **Most Common Site of Bleeding:** Posterior wall of the first part of the duodenum (Gastroduodenal artery). * **Modified Boey Score:** Used to predict mortality in patients with perforated ulcers.

Q: Which of the following is typically true for mesenteric tumors?

Usually cystic. **Explanation:** Mesenteric tumors are relatively rare clinical entities, but for the purpose of NEET-PG, it is essential to distinguish between primary mesenteric masses and secondary involvements. **1. Why "Usually Cystic" is correct:** The majority of primary mesenteric tumors are **cystic** rather than solid. The most common type is the **Mesenteric Cyst** (often lymphangiomas or enteric duplication cysts). These are typically benign, slow-growing, and filled with serous or chylous fluid. A classic clinical sign of a mesenteric cyst is its **mobility perpendicular to the line of the mesenteric attachment** (Tillaux’s sign), which distinguishes it from omental or retroperitoneal cysts. **2. Why other options are incorrect:** * **A. Usually solid:** While solid tumors like desmoid tumors, lipomas, or gastrointestinal stromal tumors (GIST) can occur in the mesentery, they are statistically less common than cystic lesions. * **C. Highly malignant:** Most primary mesenteric cysts are benign. Malignant primary mesenteric tumors (like liposarcomas or leiomyosarcomas) are rare. When malignancy is seen in the mesentery, it is more commonly due to secondary deposits (metastasis) from GI or pelvic cancers. * **D. Highly vascular:** Most mesenteric cysts are relatively avascular or have low vascularity. Hypervascularity is more characteristic of specific solid tumors like paragangliomas or certain metastases. **High-Yield Clinical Pearls for NEET-PG:** * **Tillaux’s Sign:** A pathognomonic finding where the mass is mobile horizontally (transversely) but fixed vertically. * **Chylous Cyst:** The most common variety of mesenteric cyst, usually found in the ileal mesentery. * **Treatment of choice:** Complete surgical excision (enucleation). If the blood supply to the adjacent bowel is compromised, bowel resection may be necessary.

Q: A patient with carcinoma of the lower third of the esophagus receives chemoradiotherapy and shows complete response in dysphagia. What is the next step in management?

Esophagectomy. **Explanation:** The management of esophageal carcinoma depends on the stage and location. For resectable carcinoma of the lower third of the esophagus (typically adenocarcinoma or squamous cell carcinoma), the standard of care is **Neoadjuvant Chemoradiotherapy (nCRT)** followed by **Surgery (Esophagectomy)**. **Why Esophagectomy is the correct answer:** Even if a patient shows a "complete clinical response" (disappearance of dysphagia and negative imaging), it does not equate to a "pathological complete response." Microscopic residual disease is frequently present in the esophageal wall or regional lymph nodes. Studies (like the CROSS trial) demonstrate that surgical resection after nCRT significantly improves long-term survival and reduces the risk of local recurrence compared to non-surgical management. **Why other options are incorrect:** * **A & B (Reassure/Follow-up):** Esophageal cancer has a high propensity for local recurrence and systemic spread. Observation alone is considered "definitive CRT," which is generally reserved for patients who are medically unfit for surgery or have cervical esophageal cancer. * **D (Endoscopic Ultrasound):** While EUS is excellent for initial staging, it is unreliable for assessing response after radiotherapy due to radiation-induced fibrosis and inflammation, which can mimic residual tumor (high false-positive rate). **Clinical Pearls for NEET-PG:** * **Standard Procedure:** For lower-third lesions, **Ivor-Lewis Esophagectomy** (laparotomy + right thoracotomy) is the most common approach. * **Gold Standard:** Surgery remains the mainstay for resectable T2-T4a tumors. * **Cervical Esophagus:** Unlike the lower third, the treatment of choice for carcinoma of the **cervical esophagus** is definitive Chemoradiotherapy, as surgery is highly morbid (requires laryngopharyngectomy).

Q: A pulled up cecum is seen in which of the following conditions?

Ileocecal tuberculosis. **Explanation:** The correct answer is **Ileocecal tuberculosis (C)**. In ileocecal tuberculosis, chronic inflammation leads to significant fibrosis and cicatrization of the ileocecal junction and the ascending colon. As the fibrous tissue contracts, it shortens the ascending colon, causing the cecum to be "pulled up" from the right iliac fossa toward the subhepatic region. This characteristic radiological and clinical finding is known as a **"Pulled-up Cecum."** On a Barium meal follow-through, this often presents alongside the **Stierlin sign** (rapid emptying of the inflamed segment) and the **Fleischner sign** (inverted umbrella appearance of the ileocecal valve). **Analysis of Incorrect Options:** * **Carcinoma of the colon:** Typically presents with "Apple-core" lesions or irregular filling defects. While it causes obstruction, it does not typically cause the symmetric longitudinal fibrosis required to pull the cecum superiorly. * **Carcinoid tumor:** These tumors often cause a desmoplastic reaction in the mesentery, leading to kinking or tethering of the small bowel loops, but they do not specifically cause a pulled-up cecum. * **Crohn’s disease:** While it involves the terminal ileum, Crohn’s is characterized by transmural inflammation, "string signs," and "skip lesions." It usually results in a narrow, fixed terminal ileum rather than the vertical displacement of the cecum. **High-Yield Clinical Pearls for NEET-PG:** * **Most common site of GI TB:** Ileocecal region (due to high density of lymphoid tissue/Peyer's patches and increased physiological stasis). * **Barium Findings in TB:** * **Stierlin Sign:** Narrowing of the terminal ileum with rapid emptying into the cecum. * **Fleischner Sign:** Thickened, gaping ileocecal valve. * **Goose-neck deformity:** Loss of the normal ileocecal angle. * **Clinical Sign:** A "Doughy abdomen" is a classic physical exam finding in peritoneal tuberculosis.

Q: Boerhaave syndrome involves perforation of the esophagus after which of the following actions?

Vomiting. **Explanation:** **Boerhaave syndrome** is a spontaneous transmural perforation of the esophagus. It is caused by a sudden, massive increase in intra-esophageal pressure combined with negative intrathoracic pressure. 1. **Why Vomiting is Correct:** The classic mechanism involves forceful vomiting or retching against a closed glottis (the **Mackler triad**: vomiting, chest pain, and subcutaneous emphysema). The sudden rise in pressure typically causes a longitudinal tear in the **left posterolateral aspect of the distal esophagus**, approximately 2–3 cm above the gastroesophageal junction, which is the anatomically weakest point. 2. **Why Other Options are Incorrect:** * **Burns & Acid Ingestion:** These cause chemical esophagitis, strictures, or immediate liquefactive/coagulative necrosis. While they can lead to perforation, it is due to tissue erosion rather than the barogenic (pressure-related) mechanism defining Boerhaave. * **Stress:** While "Stress ulcers" (Curling’s or Cushing’s) can cause gastric or duodenal perforations, they do not cause spontaneous esophageal rupture. **High-Yield Clinical Pearls for NEET-PG:** * **Diagnosis:** The gold standard initial investigation is a **Gastrografin (water-soluble) swallow**, which shows extravasation of contrast. * **Chest X-ray:** May show pneumomediastinum, left-sided pleural effusion, or the **V-sign of Naclerio** (air behind the heart). * **Distinction:** Unlike **Mallory-Weiss syndrome** (which involves only a mucosal/submucosal tear and presents with hematemesis), Boerhaave syndrome is **transmural** and is a surgical emergency with high mortality. * **Management:** Requires immediate resuscitation, IV antibiotics, and usually surgical repair (primary closure and mediastinal drainage) if diagnosed within 24 hours.

Question 1

Which of the following statements are true about Barrett's esophagus?

Accepted Answer

Biopsy is necessary to diagnose it.

Answer

It is a premalignant condition.

Answer

It predisposes to squamous cell carcinoma.

Answer

It can be diagnosed by seeing it under endoscopy.

Question 2

A 68-year-old male musician presents with sudden onset of colicky abdominal pain and massive vomiting of 4-hour duration. Examination shows an elevated WBC of 13,200 with a HCT of 45%. Electrolytes and BUN are normal. An erect abdominal film reveals dilatation of the stomach with distended loops of bowel. What is the clinical diagnosis?

Accepted Answer

Complete proximal intestinal obstruction

Answer

Incomplete proximal intestinal obstruction

Answer

Complete ileal obstruction

Answer

Incomplete ileal obstruction

Question 3

All of the following is true about achalasia cardia except?

Accepted Answer

Males are affected more than females.

Answer

Lower esophageal sphincter does not relax normally.

Answer

Absence of gastric air bubble is a sign seen on X-ray.

Answer

Manometry is the most confirmatory investigation.

Question 4

A perforated peptic ulcer is treated by all except?

Accepted Answer

Under running of the vessel

Answer

H. pylori eradication

Answer

Highly selective vagotomy

Answer

Omental patch

Question 5

Which of the following is typically true for mesenteric tumors?

Accepted Answer

Usually cystic

Answer

Usually solid

Answer

Highly malignant

Answer

Highly vascular

Question 6

What is the commonest stomach tumor that bleeds?

Accepted Answer

Leiomyosarcoma

Answer

Adenocarcinoma

Answer

Squamous carcinoma

Answer

Fibrosarcoma

Question 7

A patient with carcinoma of the lower third of the esophagus receives chemoradiotherapy and shows complete response in dysphagia. What is the next step in management?

Accepted Answer

Esophagectomy

Answer

Reassure

Answer

Follow with CT scan every 6 months

Answer

Endoscopic ultrasound to look for residual disease

Question 8

A pulled up cecum is seen in which of the following conditions?

Accepted Answer

Ileocecal tuberculosis

Answer

Carcinoma of the colon

Answer

Carcinoid tumor

Answer

Crohn's disease

Question 9

Boerhaave syndrome involves perforation of the esophagus after which of the following actions?

Accepted Answer

Vomiting

Answer

Burns

Answer

Acid ingestion

Answer

Stress

Question 10

What is true about hiatus hernia?

Accepted Answer

Surgery is indicated in all symptomatic cases of paraesophageal hiatus hernia.

Answer

The para-esophageal type is more complicated.

Answer

The para-esophageal type is the most common type.

Answer

Hiatus hernia is common in infants.

Gastrointestinal Surgery — MCQs

Gastrointestinal Surgery — MCQs

On this page

Practice by Chapter

Want unlimited practice?