Gastroesophageal Reflux Indian Medical PG Practice Questions and MCQs
Practice Indian Medical PG questions for Gastroesophageal Reflux. These multiple choice questions (MCQs) cover important concepts and help you prepare for your exams.
Gastroesophageal Reflux Indian Medical PG Question 1: A 3-month-old with projectile vomiting and olive-shaped mass in abdomen is diagnosed with?
- A. Hirschsprung disease
- B. GERD
- C. Pyloric stenosis (Correct Answer)
- D. Duodenal atresia
Gastroesophageal Reflux Explanation: ***Pyloric stenosis***
- The classic triad of **projectile vomiting**, a palpable **olive-shaped mass** (hypertrophied pylorus), and age of presentation (2-8 weeks, though 3 months is still possible) are highly indicative of **pyloric stenosis**.
- This condition involves thickening of the **pyloric muscle**, leading to gastric outlet obstruction and non-bilious emesis.
*Hirschsprung disease*
- This typically presents with **constipation**, **abdominal distension**, and failure to pass meconium, rather than projectile vomiting.
- It results from the absence of **ganglion cells** in the distal colon, causing functional obstruction.
*GERD*
- While GERD can cause vomiting in infants, it is usually not **projectile** and is rarely associated with a palpable **olive-shaped mass**.
- Infants with GERD typically respond to conservative measures like thickening feeds or acid suppressants.
*Duodenal atresia*
- This condition presents with **bilious vomiting** (as the obstruction is distal to the ampulla of Vater) usually within the first 24-48 hours of life.
- An abdominal X-ray would show a **double bubble sign**, which is not mentioned in the presentation for pyloric stenosis.
Gastroesophageal Reflux Indian Medical PG Question 2: A 24-day-old neonate presents with projectile vomiting and failure to gain weight. What is the most likely diagnosis?
- A. NEC
- B. Duodenal atresia
- C. Hirschsprung's disease
- D. Congenital Hypertrophic Pyloric Stenosis (Correct Answer)
Gastroesophageal Reflux Explanation: ***Congenital Hypertrophic Pyloric Stenosis***
- The classic presentation includes **projectile, non-bilious vomiting** in a neonate around 2-8 weeks old, leading to **failure to thrive**.
- An **olive-shaped mass** (hypertrophied pylorus) may be palpable in the epigastrium.
*NEC*
- **Necrotizing enterocolitis (NEC)** is an inflammatory disease of the intestine, primarily affecting premature infants.
- Symptoms typically include **abdominal distension**, bloody stools, and lethargy, rather than projectile vomiting.
*Duodenal atresia*
- Presents with **bilious vomiting** within the first 24-48 hours of life due to an obstruction below the ampulla of Vater.
- An X-ray would show a **"double bubble" sign**, which is not implied by the provided symptoms.
*Hirschsprung's disease*
- Characterized by **failure to pass meconium** within the first 24-48 hours and chronic constipation.
- Vomiting, if present, is usually **bilious** and associated with abdominal distension, not projectile in nature.
Gastroesophageal Reflux Indian Medical PG Question 3: Gold standard investigation for diagnosing GERD:
- A. 24 hour pH monitoring (Correct Answer)
- B. USG
- C. HIDA
- D. Manometry
Gastroesophageal Reflux Explanation: ***24 hour pH monitoring***
- This is considered the **gold standard** for diagnosing GERD because it directly measures the frequency and duration of **acid reflux events** into the esophagus.
- It helps correlate symptoms with reflux episodes, providing objective evidence for the diagnosis and guiding treatment.
*USG*
- **Ultrasound (USG)** is primarily used for imaging abdominal organs like the **gallbladder**, liver, and kidneys, not for directly assessing esophageal acid reflux.
- While it can sometimes detect complications, it cannot diagnose the presence or severity of GERD itself.
*HIDA*
- **HIDA scan** (hepatobiliary iminodiacetic acid scan) is used to diagnose problems of the **gallbladder** and bile ducts, such as cholecystitis or biliary obstruction.
- It is not relevant for the diagnosis of gastroesophageal reflux disease.
*Manometry*
- **Esophageal manometry** measures the **pressure and coordination of esophageal muscle contractions**, assessing motility disorders [1].
- While it can identify related conditions like achalasia or ineffective peristalsis, it does not directly measure acid reflux and therefore is not the gold standard for GERD diagnosis.
Gastroesophageal Reflux Indian Medical PG Question 4: A 55-year-old male presents with a history of dysphagia with vomiting of undigested food throughout the day, weight loss, and appears emaciated and dehydrated. No mass is palpable per abdomen. After appropriate diagnostic workup reveals a benign esophageal stricture, the most appropriate definitive management is:
- A. IV normal saline
- B. pH monitoring
- C. IV total parenteral nutrition
- D. Endoscopic dilation (Correct Answer)
Gastroesophageal Reflux Explanation: ***Endoscopic dilation (preferred treatment)***
- **Endoscopic dilation** directly addresses the underlying problem of the **benign esophageal stricture** by widening the narrowed esophagus, which is crucial for relieving dysphagia and improving nutritional intake.
- Given the patient's severe symptoms like **weight loss**, **emaciation**, and **dehydration**, dilation allows for symptom relief and subsequent rehydration and nutritional support.
*IV total parenteral nutrition*
- While TPN provides nutrition, it does not resolve the **mechanical obstruction** caused by the stricture and carries risks such as infection and metabolic complications.
- It's typically reserved for situations where enteral feeding is not possible or adequate after addressing the obstruction.
*IV normal saline*
- **IV normal saline** would help address the immediate **dehydration**, but it does not treat the underlying cause of the patient's symptoms (the esophageal stricture).
- This is a supportive measure, not the primary management strategy for the stricture itself.
*pH monitoring*
- **pH monitoring** is used to diagnose and assess gastroesophageal reflux disease (**GERD**), which can sometimes cause strictures.
- However, in a patient with a confirmed benign esophageal stricture and severe obstructive symptoms, addressing the stricture mechanically (dilation) takes precedence over diagnostic testing for reflux.
Gastroesophageal Reflux Indian Medical PG Question 5: The Barium Swallow examination shows a filling defect in the esophagus. What is the most probable diagnosis?
- A. Esophageal Carcinoma (Correct Answer)
- B. Esophageal Ring
- C. Esophageal Tear
- D. Achalasia Cardia
Gastroesophageal Reflux Explanation: ***Esophageal Carcinoma***
- A filling defect on a barium swallow study, especially with irregular borders and luminal narrowing, is highly suggestive of an **esophageal carcinoma**.
- The image appears to show an **irregular, obstructing lesion** that displaces the barium column, characteristic of a mass.
*Esophageal Ring*
- An esophageal ring, such as a **Schatzki ring**, typically presents as a thin, circumferential narrowing of the distal esophagus, forming a smooth, shelf-like indentation, which is not seen here.
- Esophageal rings usually cause **intermittent dysphagia** to solids but do not present as a large, irregular filling defect.
*Esophageal Tear*
- An esophageal tear (e.g., **Mallory-Weiss tear**) is a mucosal laceration that would present with **hematemesis** and would typically appear as a linear defect or streak on a barium swallow if visible, not a filling defect.
- A tear is not usually associated with a persistent mass effect or irregular luminal obstruction seen in the image.
*Achalasia Cardia*
- **Achalasia** is characterized by the failure of the lower esophageal sphincter to relax and **absent peristalsis** in the esophageal body, leading to a classic "bird's beak" or "rat tail" appearance on barium swallow due to distal narrowing and proximal dilation.
- While it causes luminal narrowing, it does not typically present as an irregular filling defect within the lumen, but rather as a smooth tapering of the distal esophagus.
Gastroesophageal Reflux Indian Medical PG Question 6: A 40-year-old male with gastroesophageal reflux disease (GERD) is found to have Barrett's esophagus with low-grade dysplasia on endoscopy. What is the most appropriate initial pharmacological treatment for this condition?
- A. Fundoplication
- B. Esophageal resection
- C. PPI (Correct Answer)
- D. Diet modification
Gastroesophageal Reflux Explanation: ***PPI***
- In patients with **GERD** and **low-grade dysplasia**, high-dose **proton pump inhibitors (PPIs)** are the initial treatment of choice to suppress acid reflux.
- Continuous acid suppression can help in the regression of dysplasia and prevent its progression to higher grades.
*Fundoplication*
- **Fundoplication** is a surgical procedure to treat severe GERD, but it is not the primary initial treatment for low-grade dysplasia.
- It might be considered if medical therapy with PPIs fails or if there are significant anatomical defects.
*Esophageal resection*
- **Esophageal resection** is a major surgical procedure typically reserved for **high-grade dysplasia** or **esophageal adenocarcinoma**.
- It is an overly aggressive and unnecessary intervention for initial management of low-grade dysplasia.
*Diet modification*
- **Diet modification** is an important adjunctive therapy for GERD symptoms and overall gastric health.
- However, it is generally insufficient as a standalone initial treatment for documented **low-grade dysplasia** without concurrent pharmacotherapy.
Gastroesophageal Reflux Indian Medical PG Question 7: A 60-year-old man presents with foul breath and regurgitates food eaten 3 days ago. What is the most likely diagnosis?
- A. Achalasia cardia
- B. Carcinoma esophagus
- C. Loss of tone of upper esophageal sphincter
- D. Zenker's Diverticulum (Correct Answer)
Gastroesophageal Reflux Explanation: ***Zenker's Diverticulum***
- This condition presents with a classic triad of **dysphagia**, **regurgitation of undigested food**, and **foul breath (halitosis)** due to food retention in the diverticulum.
- The regurgitation of food eaten several days ago is highly characteristic, indicating significant pooling and decomposition within the **pharyngeal pouch**.
*Achalasia cardia*
- Characterized by **dysphagia for both solids and liquids** and regurgitation, but the regurgitated food is typically fresh or only recently ingested, not from several days prior.
- The primary pathology is the **failure of the lower esophageal sphincter (LES) to relax** and loss of peristalsis in the esophageal body.
*Carcinoma esophagus*
- Often presents with **progressive dysphagia** (first for solids, then for liquids) and significant **weight loss**.
- While regurgitation can occur, it's usually of recently ingested food and rarely associated with the severe halitosis from long-standing food decomposition seen in Zenker's.
*Loss of tone of upper esophageal sphincter*
- This condition would more likely lead to **regurgitation of stomach contents** into the pharynx, rather than the retention of food in a pouch.
- It could contribute to **reflux symptoms** but does not explain the formation of a diverticulum or the prolonged food retention leading to foul breath.
Gastroesophageal Reflux Indian Medical PG Question 8: The most common complication of Zenker's diverticulum is:
- A. Aspiration pneumonia (Correct Answer)
- B. Dysphonia
- C. Lung abscess
- D. Perforation
Gastroesophageal Reflux Explanation: ***Aspiration pneumonia***
- **Aspiration pneumonia** is the **most common complication** of Zenker's diverticulum, occurring due to chronic regurgitation of food and secretions that accumulate in the diverticulum.
- Patients frequently experience **nocturnal regurgitation** of undigested food, which is then *aspirated* into the airways, leading to recurrent pulmonary infections.
- This is the primary reason for surgical intervention in symptomatic patients with Zenker's diverticulum.
*Lung abscess*
- **Lung abscess** is a more *severe* but **less common** complication that can develop as a consequence of chronic, recurrent aspiration pneumonia.
- It represents a localized, necrotizing infection and is a **progression** from untreated or recurrent aspiration, rather than the initial or most frequent complication.
*Dysphonia*
- While **dysphonia** (hoarseness) can occur due to irritation from regurgitated contents or compression of the recurrent laryngeal nerve, it is **uncommon** as a complication.
- Dysphonia is more typically associated with **GERD** or direct laryngeal pathology.
*Perforation*
- **Perforation** of Zenker's diverticulum is a **rare** complication that may occur spontaneously, due to impacted food, or iatrogenically during endoscopic procedures.
- While serious, it is far less common than pulmonary complications from chronic aspiration.
Gastroesophageal Reflux Indian Medical PG Question 9: False statement about Barrett esophagus is:
- A. Chronic GERD is the predisposing factor
- B. May lead to malignancy after few years
- C. Goblet cells seen on histology
- D. Columnar to squamous metaplasia (Correct Answer)
Gastroesophageal Reflux Explanation: ***Columnar to squamous metaplasia***
- Barrett esophagus is characterized by the replacement of the normal **squamous epithelium** of the distal esophagus with **columnar epithelium** [1].
- Therefore, the statement "Columnar to squamous metaplasia" is incorrect as it describes the opposite process, making it the false statement.
*Chronic GERD is the predisposing factor*
- **Chronic gastroesophageal reflux disease (GERD)** causes repeated exposure of the esophageal lining to stomach acid, leading to cellular damage [1][2].
- This chronic irritation is the primary risk factor for the development of Barrett esophagus [1].
*May lead to malignancy after few years*
- Barrett esophagus is a significant risk factor for the development of **esophageal adenocarcinoma** [1][3].
- The metaplastic columnar epithelium can undergo further dysplastic changes, which can progress to invasive cancer over time [2].
*Goblet cells seen on histology*
- The distinctive histological feature of Barrett esophagus is the presence of **intestinal metaplasia**, which includes the identification of **goblet cells** within the columnar epithelium [1].
- These goblet cells are a key diagnostic marker for Barrett esophagus [1].
**References:**
[1] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Alimentary System Disease, pp. 348-349.
[2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Gastrointestinal Tract, pp. 764-765.
[3] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Gastrointestinal Tract, pp. 765-766.
Gastroesophageal Reflux Indian Medical PG Question 10: Adenocarcinoma of the esophagus is commonly found in patients with which of the following conditions?
- A. Chronic smoking
- B. Barrett's esophagus (Correct Answer)
- C. Achalasia cardia
- D. Plummer-Vinson syndrome
Gastroesophageal Reflux Explanation: ***Barrett's esophagus***
- **Barrett's esophagus** is a **precancerous condition** where the stratified squamous epithelium lining the distal esophagus is replaced by metaplastic columnar epithelium [1] [2]. This metaplasia is a direct risk factor for developing **esophageal adenocarcinoma** [1] [2].
- The chronic inflammation and cellular changes associated with **gastroesophageal reflux disease (GERD)** predispose individuals to Barrett's esophagus, which then increases the risk of malignant transformation [1] [2].
*Achalasia cardia*
- **Achalasia** is a disorder characterized by the inability of the lower esophageal sphincter to relax and a lack of peristalsis in the esophageal body. While it increases the risk of **squamous cell carcinoma**, it is not primarily associated with adenocarcinoma.
- The exact mechanism for increased cancer risk in achalasia is thought to be related to chronic inflammation and stasis of food, which can lead to squamous cell dysplasia.
*Plummer-Vinson syndrome*
- **Plummer-Vinson syndrome** is a rare condition characterized by iron deficiency anemia, dysphagia (due to esophageal webs), and atrophic glossitis. It is a risk factor for **squamous cell carcinoma** of the esophagus, pharynx, and oral cavity, but not adenocarcinoma.
- The esophageal webs are typically located in the proximal or mid-esophagus, and chronic irritation from dysphagia may contribute to squamous epithelial changes.
*Chronic smoking*
- **Chronic smoking** is a major risk factor for various cancers, including esophageal cancer. However, it is more strongly associated with **squamous cell carcinoma** of the esophagus, particularly in the upper and middle thirds.
- While smoking can indirectly contribute to GERD and thus potentially Barrett's esophagus, its primary association with esophageal cancer is with the squamous cell type rather than adenocarcinoma.
**References:**
[1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Gastrointestinal Tract, pp. 764-766.
[2] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Alimentary System Disease, pp. 348-349.
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