Gastrointestinal Surgery Practice Questions

Q: Splenunculi are commonly seen in which location?

Hilum of spleen. **Explanation:** **Splenunculi**, also known as **accessory spleens**, are small nodules of healthy splenic tissue found apart from the main body of the spleen. They result from the failure of fusion of separate splenic primordia within the dorsal mesogastrium during the fifth week of embryonic development. **1. Why Option A is Correct:** The **splenic hilum** is the most common site for splenunculi, accounting for approximately **75-80%** of cases. This is because the hilum is the primary site where the splenic buds aggregate during organogenesis. **2. Analysis of Incorrect Options:** * **Option B (Tail of Spleen):** While splenunculi are found near the spleen, the "tail of the spleen" is not a standard anatomical term; however, the **tail of the pancreas** is the second most common site (approx. 20%) due to its proximity to the hilum. * **Option C & D (Mesocolon & Splenic Ligaments):** These are recognized but much less frequent ectopic sites. Other rare locations include the greater omentum, the pouch of Douglas, and even the left scrotum (splenogonadal fusion). **Clinical Pearls for NEET-PG:** * **Prevalence:** Found in roughly 10-15% of the general population. * **Surgical Significance:** In patients undergoing splenectomy for hematological disorders (e.g., **Immune Thrombocytopenic Purpura (ITP)** or Hereditary Spherocytosis), failure to identify and remove a splenunculus can lead to **recurrence of the disease** (hypertrophy of the accessory tissue). * **Radiology:** On CT scans, they appear as well-defined ovoid masses that enhance identically to the parent spleen. * **Most common sites (in order):** Hilum > Tail of Pancreas > Gastrosplenic ligament > Greater omentum.

Q: Which of the following is not an indication for splenectomy?

Bone marrow failure. ***Bone marrow failure*** - In bone marrow failure (e.g., aplastic anemia), the spleen serves as an important site of **extramedullary hematopoiesis** (compensatory blood cell production outside the bone marrow) - Splenectomy would **remove this compensatory mechanism** and worsen the patient's condition - Therefore, bone marrow failure is a **contraindication**, not an indication for splenectomy *Hairy cell leukemia* - This is a chronic B-cell lymphoproliferative disorder with massive splenomegaly - Splenectomy is indicated when medical treatment fails or for symptomatic relief *Thrombocytopenia* - Immune thrombocytopenic purpura (ITP) is a classic indication for splenectomy - Performed when medical management (steroids, IVIG) fails - Spleen is the primary site of platelet destruction in ITP *Iatrogenic splenic trauma* - Intraoperative injury to the spleen during abdominal surgery - Splenectomy is indicated when hemostasis cannot be achieved or injury is severe (Grade IV-V)

Q: What is the most appropriate treatment for an 8cm chylolymphatic mesenteric cyst?

Enucleation. ***Enucleation*** - This is the standard surgical treatment for most **mesenteric cysts**, as it allows for complete removal of the cyst while preserving the adjacent bowel and its vital blood supply. - Successful **enucleation** has a very low recurrence rate and provides a definitive tissue diagnosis to rule out rare cases of malignancy. *Aspiration* - Aspiration is associated with a very high **recurrence rate** (50-100%) because the cyst-secreting lining is left behind. - It also carries risks of **infection**, **hemorrhage**, and leakage of cystic fluid causing chemical peritonitis, and it fails to provide a histological diagnosis. *Resection of the cyst along with the adjacent bowel* - This is an overly aggressive approach for a typically benign condition and should be avoided unless necessary to preserve **bowel viability**. - **Bowel resection** is reserved for cases where the cyst cannot be separated from the bowel wall or when the mesenteric blood supply is irrevocably compromised. *Conservative* - Conservative management is generally not recommended for symptomatic or large cysts (like this 8cm one) due to the risk of complications. - Potential complications include **intestinal obstruction**, **volvulus**, **torsion** of the cyst, **hemorrhage** into the cyst, or infection.

Q: A patient presents with lower right abdominal pain and rebound tenderness. Intraoperatively, an inflamed Meckel's diverticulum is found. This clinical presentation most closely mimics which condition?

Appendicitis. ***Appendicitis*** (Meckel's Diverticulitis Mimicking Appendicitis) - Inflammation of a Meckel's diverticulum (**Meckel's diverticulitis**) occurs in the right lower quadrant and is clinically indistinguishable from **acute appendicitis**. - Lower right abdominal pain and **rebound tenderness** are classic signs of localized **peritonitis** associated with inflammation of a structure near the ileocecal region. *Perforation* - Perforation causes signs of diffuse peritonitis, marked by generalized abdominal rigidity and severe systemic illness, rather than localized pain and rebound tenderness in the right lower quadrant. - It is generally a subsequent complication of severe diverticulitis, not the primary cause of this initial localized presentation. *Intestinal obstruction* - Obstruction due to Meckel's (e.g., intussusception or volvulus) presents with symptoms like **colicky pain**, abdominal distension, and **bilious vomiting**. - **Rebound tenderness** is not a primary feature unless the obstruction progresses to severe strangulation and localized ischemia. *Cholecystitis* - **Cholecystitis** is inflammation of the gallbladder, causing pain predominantly in the **right upper quadrant** or epigastrium, often linked to fatty meals. - This location is inconsistent with pain and rebound tenderness strictly localized to the **lower right abdomen**.

Q: Which of the following procedures has the highest risk of causing the recurrence of duodenal ulcers?

Highly selective vagotomy. ***Highly selective vagotomy***- ***Highly selective vagotomy*** (or parietal cell vagotomy) denervates only the acid-producing parietal cell mass, reducing basal and maximal acid output less intensely than other procedures. This procedure preserves the innervation of the **gastric antrum** and **pylorus**, maintaining physiological motility but resulting in the highest reported **ulcer recurrence rate** (historically 10-20%).*Gastrectomy*- A subtotal **gastrectomy** involves physically removing the portion of the stomach (body and/or antrum) responsible for acid or gastrin production, leading to a drastic reduction in acid load and a very low recurrence rate. This procedure is generally associated with the highest rates of **post-gastrectomy syndromes** (e.g., afferent loop syndrome, dumping syndrome) compared to vagotomy alone.*Truncal vagotomy*- **Truncal vagotomy** divides the main vagus trunks, causing near-maximal reduction of cephalic-phase acid secretion but requires mandatory **drainage procedures** (**pyloroplasty** or gastrojejunostomy) due to resulting gastric atony. The profound reduction in acid output achieved by this method gives it a significantly lower recurrence rate than highly selective vagotomy.*Gastro-jejunostomy*- **Gastro-jejunostomy** (often referring to the creation of a stoma between the stomach and jejunum) is typically performed as the **drainage procedure** necessary after truncal vagotomy, allowing food egress when the pylorus is dysfunctional. While effective in preventing stasis, a gastro-jejunostomy carries a specific risk of **marginal ulceration** (anastomotic ulceration) but the overall rate of recurrence for the combined operation is low.

Q: A 25-year-old male presents with pain starting from the umbilicus moving to the right iliac fossa, associated with fever, nausea, and tenderness in the right iliac fossa. His WBC count is 14,000/cmm. What is the Alvarado score?

7. The **Alvarado Score** (MANTRELS) is a clinical scoring system used to diagnose **Acute Appendicitis**. It is a high-yield topic for NEET-PG/INI-CET as it helps determine the need for observation, imaging, or surgery. ### **Calculation for this Patient:** The score is calculated based on the **MANTRELS** mnemonic: 1. **M**igration of pain to RIF: **1 point** (Present) 2. **A**norexia: 1 point (Not mentioned) 3. **N**ausea/Vomiting: **1 point** (Present) 4. **T**enderness in RIF: **2 points** (Present) 5. **R**ebound tenderness: 1 point (Not mentioned) 6. **E**levated temperature (>37.3°C): **1 point** (Present/Fever) 7. **L**eukocytosis (>10,000/cmm): **2 points** (Present: 14,000) 8. **S**hift to the left (Neutrophilia): 1 point (Not mentioned) **Total Score: 1 + 1 + 2 + 1 + 2 = 7** --- ### **Why the other options are incorrect:** * **Options A (6) and C (5):** These scores underestimate the weightage of **RIF Tenderness** and **Leukocytosis**, which are the only two parameters that carry **2 points** each. * **Option B (4):** A score of 4 or less makes appendicitis unlikely, whereas this patient presents with classic "textbook" symptoms and significant leukocytosis. --- ### **Clinical Pearls for INI-CET:** * **Interpretation:** * **5–6:** Possible (Equivocal); observation/CT scan recommended. * **7–8:** Probable; surgery usually indicated. * **9–10:** Very probable; immediate appendectomy. * **Modified Alvarado Score:** Excludes "Shift to the left" (Total score out of 9). * **Most common symptom:** Anorexia (often the first sign). * **Most common sign:** Tenderness at **McBurney’s point**. * **Pediatric Alternative:** The **Pediatric Appendicitis Score (PAS)** is often preferred for children.

Q: Resection of which part of intestine does not significantly affect fluid and electrolyte balance?

Distal jejunum. ***Distal jejunum*** - The distal jejunum has significant **adaptive capacity** to take over the absorptive functions of other parts of the small intestine if they are resected. - Its resection typically has the **least impact** on fluid and electrolyte balance compared to other segments of the intestine, as critical absorption of most nutrients, water, and electrolytes occurs more proximally or distally. *Ileum* - The ileum is crucial for the absorption of **vitamin B12** and **bile salts**; its resection can lead to **malabsorption** and severe diarrhea. - Loss of bile salt absorption can result in **fat malabsorption** and lead to fluid and electrolyte disturbances. *Proximal jejunum* - The proximal jejunum is the primary site for the absorption of most **nutrients** (carbohydrates, proteins, fats), **water**, and **electrolytes**. - Its resection can lead to significant **malnutrition** and severe fluid and electrolyte imbalances due to widespread malabsorption. *Colon* - The colon is responsible for the final absorption of **water** and **electrolytes**, compacting stool for elimination. - Its resection can severely impair the body's ability to conserve water and electrolytes, leading to **dehydration** and electrolyte disturbances.

Q: A Sengstaken-Blakemore tube is used for the management of :

Variceal bleeding. ***Variceal bleeding*** - A **Sengstaken-Blakemore tube** is specifically designed with gastric and esophageal balloons to apply direct pressure and tamponade **bleeding esophageal varices**, a common complication of portal hypertension. - It is utilized as a temporary measure to control severe hemorrhage when endoscopic interventions fail or are unavailable. *Corrosive poisoning* - Management of corrosive poisoning focuses on **supportive care**, pain management, and preventing further injury; a Sengstaken-Blakemore tube is not indicated. - Using such a tube could potentially worsen esophageal damage or perforation in corrosive injuries. *Tension pneumothorax* - A tension pneumothorax is a **thoracic emergency** requiring immediate **needle decompression** or chest tube insertion. - A Sengstaken-Blakemore tube is an upper gastrointestinal device and has no role in managing pulmonary conditions. *Asphyxia* - Asphyxia involves a lack of oxygen and is managed by establishing an **open airway**, providing ventilation, and addressing the underlying cause. - A Sengstaken-Blakemore tube is irrelevant to the treatment of asphyxia.

Q: While managing oesophageal perforations, which of the following factors favour non-operative management? 1. Perforation by a flexible endoscope 2. Contained perforation without free communication 3. Perforation with a small septic load 4. Perforation of the abdominal oesophagus Select the correct answer using the code given below:

1, 2 and 3. ***1, 2 and 3*** - **Perforation by a flexible endoscope** often results in smaller, less destructive perforations due to the instrument's flexibility, making non-operative management feasible if other favorable conditions are met. - **Contained perforation without free communication** implies that the leak is localized and not actively spreading into surrounding tissues, reducing the risk of widespread mediastinitis or peritonitis. - **Perforation with a small septic load** indicates minimal contamination, which simplifies management and improves the chances of successful non-operative treatment through antibiotics and supportive care. *1, 3 and 4* - This option correctly identifies factors 1 and 3, but **perforation of the abdominal esophagus** is generally treated surgically due to the high risk of widespread peritonitis and severe sepsis. - While smaller perforations are more manageable, the anatomical location in the abdominal cavity predisposes to rapid and severe contamination. *2, 3 and 4* - This option correctly includes factors 2 and 3 that favor non-operative management but incorrectly suggests that **perforation of the abdominal esophagus** is managed non-operatively. - The high risk of peritonitis from an abdominal oesophageal perforation often necessitates surgical intervention to prevent severe complications. *1, 2 and 4* - This option correctly identifies factors 1 and 2 but mistakenly includes **perforation of the abdominal esophagus** as a factor favoring non-operative management. - Abdominal oesophageal perforations are high-risk situations generally requiring early surgical repair to prevent life-threatening complications.

Question 1

Splenunculi are commonly seen in which location?

Accepted Answer

Hilum of spleen

Answer

Tail of spleen

Answer

Mesocolon

Answer

Splenic ligaments

Question 2

Which of the following is not an indication for splenectomy?

Accepted Answer

Bone marrow failure

Answer

Hairy cell leukemia

Answer

Thrombocytopenia

Answer

Iatrogenic splenic trauma

Question 3

What is the most appropriate treatment for an 8cm chylolymphatic mesenteric cyst?

Accepted Answer

Enucleation

Answer

Aspiration

Answer

Conservative

Answer

Resection of the cyst along with the adjacent bowel

Question 4

A patient presents with lower right abdominal pain and rebound tenderness. Intraoperatively, an inflamed Meckel's diverticulum is found. This clinical presentation most closely mimics which condition?

Accepted Answer

Appendicitis

Answer

Cholecystitis

Answer

Perforation

Answer

Intestinal obstruction

Question 5

Which of the following procedures has the highest risk of causing the recurrence of duodenal ulcers?

Accepted Answer

Highly selective vagotomy

Answer

Gastro-jejunostomy

Answer

Gastrectomy

Answer

Truncal vagotomy

Question 6

A 60-year-old male with a history of peptic ulcer disease presents with sudden-onset severe epigastric pain radiating to the back, vomiting, and shock. Examination reveals a rigid, board-like abdomen. Upright chest X-ray shows air under both hemidiaphragms. What is the most appropriate initial surgical management?

Accepted Answer

Graham's patch (omental patch repair) with peritoneal lavage

Answer

Conservative management with nasogastric decompression and antibiotics

Answer

Partial gastrectomy with gastrojejunostomy

Answer

Truncal vagotomy with pyloroplasty

Question 7

A 25-year-old male presents with pain starting from the umbilicus moving to the right iliac fossa, associated with fever, nausea, and tenderness in the right iliac fossa. His WBC count is 14,000/cmm. What is the Alvarado score?

Accepted Answer

7

Answer

6

Answer

4

Answer

5

Question 8

Resection of which part of intestine does not significantly affect fluid and electrolyte balance?

Accepted Answer

Distal jejunum

Answer

Ileum

Answer

Proximal jejunum

Answer

Colon

Question 9

A Sengstaken-Blakemore tube is used for the management of :

Accepted Answer

Variceal bleeding

Answer

Corrosive poisoning

Answer

Tension pneumothorax

Answer

Asphyxia

Question 10

While managing oesophageal perforations, which of the following factors favour non-operative management?

1. Perforation by a flexible endoscope

2. Contained perforation without free communication

3. Perforation with a small septic load

4. Perforation of the abdominal oesophagus

Select the correct answer using the code given below:

Accepted Answer

1, 2 and 3

Answer

1, 3 and 4

Answer

2, 3 and 4

Answer

1, 2 and 4

Gastrointestinal Surgery — MCQs

Gastrointestinal Surgery — MCQs

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