Gastrointestinal Surgery Practice Questions

Q: A patient with complaints of dysphagia for solids who can only take liquids and has a history of smoking and weight loss. What is the most likely diagnosis?

Carcinoma esophagus. ***Carcinoma esophagus*** - Progressive dysphagia starting with **solids** and progressing to **liquids** is a classic symptom of esophageal carcinoma, indicating mechanical obstruction that worsens over time. - History of **smoking** is a major risk factor for esophageal squamous cell carcinoma. - Unexplained **weight loss** is a red flag sign of malignancy, commonly seen in advanced esophageal cancer. - This triad (progressive dysphagia, smoking, weight loss) strongly suggests malignancy. *Achalasia cardia* - In achalasia, dysphagia typically occurs for both **solids and liquids simultaneously** from the onset due to impaired relaxation of the lower esophageal sphincter. - The pattern is non-progressive or paradoxical (sometimes liquids are more difficult than solids). - While weight loss can occur, smoking is not a risk factor for achalasia. *Esophageal stricture* - Benign esophageal strictures usually occur secondary to **chronic GERD** or caustic injury. - While they cause progressive dysphagia for solids, the absence of reflux history and presence of significant **weight loss** and **smoking history** make malignancy more likely. - Strictures typically have a more chronic, stable course without the constitutional symptoms seen here. *Barrett's esophagus* - Barrett's esophagus is a **pre-malignant condition** characterized by intestinal metaplasia of the esophageal mucosa. - It is typically **asymptomatic** or presents with GERD symptoms, not progressive dysphagia. - While it can progress to adenocarcinoma, Barrett's itself does not cause mechanical obstruction or dysphagia. - The clinical presentation here suggests established malignancy, not a pre-malignant condition.

Q: Which finding is assigned 2 points in the Alvarado scoring system for appendicitis assessment?

Leukocytosis. **Leukocytosis** - An elevated **white blood cell count** (typically greater than 10,000 cells/mm³) is a significant indicator of inflammation, assigned **2 points** in the Alvarado score. - This finding reflects the body's systemic response to the infection and inflammation associated with **appendicitis**. *Low-grade fever* - A low-grade fever (oral temperature of 37.3-38.0°C) is assigned **1 point** in the Alvarado score. - While indicative of inflammation, it is less specific and less weighted than leukocytosis. *Nausea and vomiting* - These gastrointestinal symptoms are common in appendicitis and are assigned **1 point** in the Alvarado score. - They are non-specific and can be present in many other abdominal conditions. *Rebound tenderness* - This clinical sign, indicating **peritoneal irritation**, is assigned **1 point** in the Alvarado score. - It is a physical exam finding, not a laboratory finding, and suggests localized inflammation.

Q: Most common early complication of end ileostomy is

Dermatitis. ***Dermatitis*** - **Peristomal dermatitis** is the most common early complication of an end ileostomy, typically occurring due to irritation from digestive enzymes in the ileostomy effluent. - The effluent is highly proteolytic and enzymatic, causing **skin breakdown** and inflammation around the stoma. *Necrosis* - While a serious complication, **stoma necrosis** is less common than dermatitis and usually manifests within the first few days post-operatively due to compromised blood supply. - It often presents with a **dark purple or black discoloration** of the stoma, indicating tissue death. *Prolapse* - **Stoma prolapse** is an uncommon early complication, more frequently seen weeks to months after surgery, particularly if there is increased intra-abdominal pressure. - It involves the bowel protruding excessively through the stoma opening. *Hernia* - A **parastomal hernia** is a late complication, typically developing months to years after surgery, due to weakening of the abdominal wall muscles around the stoma. - Clinical signs include a **bulge around the stoma**, which may be more noticeable when coughing or straining.

Q: Which of the following is a true statement about Meckel's diverticulum?

It is located on the antimesenteric side of the ileum.. ***It is located on the antimesenteric side of the ileum.*** - Meckel's diverticulum is a **true diverticulum** located on the **antimesenteric border** of the ileum, typically within 100 cm of the ileocecal valve. - This anatomical position is characteristic and helps differentiate it from other intestinal anomalies. - It contains all layers of the bowel wall, distinguishing it from false diverticula. *It is a false diverticulum formed by mucosal herniation* - This statement is **incorrect** because Meckel's diverticulum is a **true diverticulum**, not a false one. - A true diverticulum contains **all three layers** of the bowel wall (mucosa, submucosa, and muscularis propria), unlike false diverticula which only involve mucosa and submucosa herniating through the muscular layer. - Meckel's diverticulum is a remnant of the **omphalomesenteric duct** (vitellointestinal duct) and often contains heterotopic gastric or pancreatic tissue. *It is found on the mesenteric side of the ileum* - This statement is incorrect as Meckel's diverticulum is characteristically found on the **antimesenteric side** of the ileum. - Its antimesenteric location is a key distinguishing feature and helps in surgical identification. *Meckel's diverticulum is always associated with Littre's hernia* - While it is possible for a Meckel's diverticulum to be present within a **hernia sac** (Littre's hernia), this association is **not always** present. - Littre's hernia is a specific type of hernia where a Meckel's diverticulum is contained within the hernia sac, but most Meckel's diverticula do not present as part of a hernia.

Q: What is the investigation of choice for dysphagia for solids?

Endoscopy. ***Endoscopy*** - **Endoscopy** is the investigation of choice for dysphagia for solids because it allows direct visualization of the esophageal lumen and mucosa. - It enables the physician to identify and biopsy structural abnormalities such as strictures, tumors, or inflammation, which are common causes of dysphagia for solids. - Provides therapeutic options (dilation, stent placement) in the same sitting. *X-ray chest* - An **X-ray chest** can detect gross abnormalities like large masses or significant mediastinal widening but offers limited detail of the esophageal lumen. - It cannot reliably identify more subtle mucosal lesions or functional disorders leading to dysphagia. *C.T. Scan* - A **CT scan** provides cross-sectional images of the chest and mediastinum, useful for assessing extrinsic compression or advanced malignancies. - However, it is less sensitive for evaluating intrinsic esophageal mucosal abnormalities or differentiating between various causes of dysphagia compared to endoscopy. *Barium swallow* - A **barium swallow** is a radiological study that can demonstrate the contour and patency of the esophagus, especially useful for identifying strictures, webs, or diverticula. - While helpful as an initial investigation, it is a functional study and does not allow for direct visualization or tissue biopsy, which are often necessary for a definitive diagnosis of dysphagia for solids.

Q: Which of the following is not useful in the management of acute appendicitis?

Purgation. ***Purgation*** - **Purgation** (inducing vigorous bowel evacuation) is contraindicated in acute appendicitis as it can increase intraluminal pressure and potentially lead to **perforation** of the inflamed appendix. - Such aggressive bowel stimulation is harmful and offers no therapeutic benefit in managing appendicitis. *Antibiotics* - **Preoperative antibiotics** are crucial in acute appendicitis to cover potential bacterial contamination, especially in cases of suspected **perforation** or **gangrene**. - They help reduce the risk of **postoperative infections** and improve overall outcomes. *Analgesics* - **Analgesics** (pain relievers) are essential for managing the severe abdominal pain associated with acute appendicitis. - While traditionally withheld to avoid masking symptoms, it is now widely accepted that **adequate pain control** does not hinder diagnosis and improves patient comfort. *IV fluids* - Patients with acute appendicitis are often **dehydrated** due to anorexia, vomiting, and fever. - **Intravenous fluids** are critical to correct fluid and electrolyte imbalances, ensuring patient stability before and during surgery.

Q: What is the most common indication for surgery in patients with Crohn's disease?

Intestinal obstruction. ***Intestinal obstruction*** - **Intestinal obstruction due to strictures** is the most common indication for surgery in Crohn's disease, accounting for 40-70% of surgical interventions. - Chronic transmural inflammation leads to **fibrotic strictures** that cause recurrent obstructive symptoms including abdominal pain, distension, and vomiting. - When strictures become symptomatic and unresponsive to medical therapy or endoscopic balloon dilation, **surgical resection or stricturoplasty** becomes necessary. *Fistulas* - **Fistulas** are the second most common indication for surgery in Crohn's disease, occurring in 20-40% of surgical cases. - Complex fistulas (enterocutaneous, enterovesical, enterovaginal) often require surgical intervention when they are symptomatic or fail conservative management. - Internal fistulas may sometimes be managed conservatively if asymptomatic. *Perforation* - **Free perforation** is a serious but relatively rare complication of Crohn's disease requiring emergency surgery. - More commonly, Crohn's disease presents with contained perforations forming abscesses rather than free perforations. - Acute perforation represents only 1-2% of surgical indications. *Malignancy* - While patients with Crohn's disease have a slightly increased risk of **small bowel adenocarcinoma** and colorectal cancer, malignancy is a rare indication for surgery. - Surveillance and early detection programs aim to identify dysplasia before progression to invasive cancer. - Surgery for established malignancy represents less than 5% of operations in Crohn's disease patients.

Q: All are true about Boerhaave's syndrome except:

Vertical split in the gastric mucosa. ***Vertical split in the gastric mucosa*** - A vertical split in the gastric mucosa is characteristic of a **Mallory-Weiss tear**, not Boerhaave's syndrome. - Mallory-Weiss tears are typically **partial-thickness tears** at the gastroesophageal junction caused by forceful vomiting. *Oesophagus bursts at its weakest point in the lower third* - Boerhaave's syndrome specifically refers to a **full-thickness rupture of the esophagus**. - The rupture typically occurs in the **distal (lower) third of the esophagus**, which is considered its weakest point due to the lack of serosal layer. *Barotrauma* - The rupture in Boerhaave's syndrome is caused by a sudden, severe increase in intra-esophageal pressure from **forceful vomiting**. - This rapid rise in pressure against a closed glottis constitutes **barotrauma** to the esophageal wall. *Vomiting occurs against a closed glottis* - A key mechanism in Boerhaave's syndrome is the act of **retching or vomiting against a closed glottis**. - This action traps air and creates a massive intraluminal pressure surge, leading to the **esophageal rupture**.

Q: When a spontaneous perforation of the esophagus occurs as a result of severe barotrauma while a person vomits against a closed glottis, what is this condition known as?

Boerhaave's syndrome. ***Boerhaave's syndrome*** - This syndrome is characterized by a **spontaneous transmural esophageal rupture** due to a sudden increase in intraesophageal pressure, typically caused by **severe retching or vomiting** against a closed glottis. - It's a medical emergency often associated with **chest pain**, **dyspnea**, and in some cases, **subcutaneous emphysema**. *Mallory-Weiss syndrome* - This involves **longitudinal mucosal tears** at the gastroesophageal junction, also caused by severe vomiting or retching, but it does not involve a full-thickness rupture. - It usually presents with **hematemesis** (vomiting blood) and is less severe than Boerhaave's syndrome. *Plummer-Vinson syndrome* - This is a rare condition characterized by **dysphagia**, **iron-deficiency anemia**, and **esophageal webs**. - It is not directly related to esophageal perforation or vomiting. *Kallmann syndrome* - This is a genetic condition characterized by **anosmia** (inability to smell) and **hypogonadotropic hypogonadism**, leading to delayed or absent puberty. - It is an endocrine disorder and has no association with esophageal conditions.

Question 1

A patient with complaints of dysphagia for solids who can only take liquids and has a history of smoking and weight loss. What is the most likely diagnosis?

Accepted Answer

Carcinoma esophagus

Answer

Achalasia cardia

Answer

Esophageal stricture

Answer

Barrett's esophagus

Question 2

Which finding is assigned 2 points in the Alvarado scoring system for appendicitis assessment?

Accepted Answer

Leukocytosis

Answer

Low-grade fever

Answer

Nausea and vomiting

Answer

Rebound tenderness

Question 3

Most common early complication of end ileostomy is

Accepted Answer

Dermatitis

Answer

Prolapse

Answer

Hernia

Answer

Necrosis

Question 4

Which of the following is a true statement about Meckel's diverticulum?

Accepted Answer

It is located on the antimesenteric side of the ileum.

Answer

It is found on the mesenteric side of the ileum

Answer

Meckel's diverticulum is always associated with Littre's hernia

Answer

It is a false diverticulum formed by mucosal herniation

Question 5

What is the investigation of choice for dysphagia for solids?

Accepted Answer

Endoscopy

Answer

C.T. Scan

Answer

Barium swallow

Answer

X-ray chest

Question 6

Which of the following is not useful in the management of acute appendicitis?

Accepted Answer

Purgation

Answer

Analgesics

Answer

IV fluids

Answer

Antibiotics

Question 7

What is the most common indication for surgery in patients with Crohn's disease?

Accepted Answer

Intestinal obstruction

Answer

Fistulas

Answer

Malignancy

Answer

Perforation

Question 8

All are true about Boerhaave's syndrome except:

Accepted Answer

Vertical split in the gastric mucosa

Answer

Vomiting occurs against a closed glottis

Answer

Barotrauma

Answer

Oesophagus bursts at its weakest point in the lower third

Question 9

When a spontaneous perforation of the esophagus occurs as a result of severe barotrauma while a person vomits against a closed glottis, what is this condition known as?

Accepted Answer

Boerhaave's syndrome

Answer

Mallory-Weiss syndrome

Answer

Plummer-Vinson syndrome

Answer

Kallmann syndrome

Question 10

In the context of gastric resections, which procedure is associated with a greater risk of developing anemia?

Accepted Answer

Billroth II

Answer

Billroth I

Answer

Both procedures have equal effects on anemia.

Answer

Neither procedure affects anemia.

Gastrointestinal Surgery — MCQs

Gastrointestinal Surgery — MCQs

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