Gastrointestinal Surgery Practice Questions

Q: Which of the following is NOT true about gastric carcinoma?

Surgically non-curative lesions should not be resected.. **Explanation:** The management of gastric carcinoma involves a balance between curative resection and palliative care. **Why Option C is the correct answer (False statement):** In gastric cancer, even if a lesion is deemed **surgically non-curative** (e.g., due to distant metastasis or local invasion), surgery may still be indicated for **palliation**. Palliative gastrectomy or bypass procedures are performed to alleviate life-threatening complications such as gastric outlet obstruction, uncontrollable hemorrhage, or perforation. Therefore, the statement that non-curative lesions should *not* be resected is clinically incorrect. **Analysis of Incorrect Options (True statements):** * **Option A:** *H. pylori* is a Class I carcinogen. It causes chronic atrophic gastritis and intestinal metaplasia, significantly increasing the risk of distal gastric adenocarcinoma. * **Option B:** D2 gastrectomy refers to the extent of lymphadenectomy (removal of N1 and N2 nodes). It can be performed as part of either a **subtotal** or a **total gastrectomy**, depending on the tumor's location (proximal vs. distal). * **Option D:** Total gastrectomy removes all parietal cells, which produce **Intrinsic Factor**. This leads to the malabsorption of Vitamin B12, necessitating lifelong parenteral supplementation to prevent megaloblastic anemia. **NEET-PG High-Yield Pearls:** * **Standard of Care:** D2 lymphadenectomy is the gold standard for curative resection. * **Lauren Classification:** Divides gastric cancer into **Intestinal** (associated with *H. pylori*) and **Diffuse** (associated with CDH1 mutation/Signet ring cells). * **Virchow’s Node:** Left supraclavicular lymphadenopathy indicating metastatic spread. * **Sister Mary Joseph Nodule:** Periumbilical metastasis.

Q: Which of the following is NOT a risk factor for carcinoma of the stomach?

Duodenal peptic ulcer. **Explanation:** The correct answer is **Duodenal peptic ulcer**. In surgical pathology, duodenal ulcers (DU) are associated with high gastric acid secretion (hyperchlorhydria). Gastric cancer, conversely, thrives in an environment of low acid (hypochlorhydria) and mucosal atrophy. Therefore, patients with a history of DU actually have a **decreased risk** of developing gastric adenocarcinoma. **Analysis of Options:** * **Blood Group A:** There is a well-established genetic association between Blood Group A and the **diffuse type** of gastric cancer (Lauren classification). * **Atrophic Gastritis:** This is a precursor lesion. Chronic inflammation leads to intestinal metaplasia and dysplasia, significantly increasing the risk of the **intestinal type** of gastric cancer. * **Partial Gastrectomy:** Patients who have undergone a distal gastrectomy (especially Billroth II reconstruction) for benign disease are at increased risk after 15–20 years. This is due to chronic **alkaline reflux** (bile reflux) causing "stump cancer" in the remnant stomach. **NEET-PG High-Yield Pearls:** 1. **H. pylori Paradox:** While *H. pylori* is the #1 risk factor for both, the strain and host response determine the outcome. Antral-predominant infection leads to DU (low cancer risk), while pangastritis leads to atrophy and cancer. 2. **Lauren Classification:** * **Intestinal Type:** Associated with environmental factors (diet, *H. pylori*), older age, and hematogenous spread. * **Diffuse Type:** Associated with Blood Group A, younger age, and transmural/lymphatic spread (e.g., Linitis Plastica). 3. **Dietary Factors:** High intake of nitrates/nitrites (smoked foods) and low Vitamin C intake are significant risk factors.

Q: A 27-year-old woman presents with high fever and abdominal pain. Initially, the pain is around the navel but shifts to the right lower quadrant. A CT scan is provided. Which structure is affected?

Appendix. ***Appendix*** - Classic presentation of **periumbilical pain** migrating to the **right lower quadrant (McBurney's point)** with fever strongly indicates **acute appendicitis**. - CT findings typically show **appendiceal wall thickening >6mm**, **periappendiceal fat stranding**, and possible **appendicolith** or fluid collection. *Right ovary* - **Ovarian pathology** (torsion, cysts) typically presents with **sudden onset pelvic pain** without the characteristic pain migration pattern. - Usually lacks **systemic signs** like high fever and **Rovsing's sign** (pain in RLQ when palpating LLQ) seen in appendicitis. *Ileocecal junction* - **Ileocecal pathology** (Crohn's disease, intussusception) presents with **crampy abdominal pain** and **diarrhea**, not the classic appendicitis pain pattern. - CT would show **bowel wall thickening** at the junction rather than isolated appendiceal inflammation with fat stranding. *Ascending colon* - **Ascending colon pathology** typically presents with **right-sided abdominal pain** that is more diffuse and associated with **bowel symptoms**. - CT findings would show **colonic wall thickening** or **diverticular changes** rather than the focal appendiceal inflammation seen in appendicitis.

Q: Which of the following statements about hernia is false?

Indirect inguinal hernia is the most common type.. ### Explanation The question asks to identify the **false** statement regarding hernias. **Analysis of Options:** * **Option C (Correct Answer - False Statement):** While indirect inguinal hernia is indeed the most common type of hernia in both sexes, the question structure implies a discrepancy in the provided key. **Note:** In standard surgical teaching, Option C is a **true** statement. However, in the context of this specific MCQ, **Option B** is the classically false statement. Let’s evaluate the clinical accuracy: * **Option B (False):** In **Richter’s hernia**, only a portion of the bowel wall (antimesenteric border) is trapped in the hernial orifice. Since the entire lumen is not occluded, bowel continuity is maintained. Therefore, **absolute constipation is NOT seen**; patients may still pass flatus or feces, making this a dangerous "silent" killer as it delays diagnosis. * **Option A (False/Contextual):** In children, all inguinal hernias are indirect and congenital (due to patent processus vaginalis). They **must be treated surgically** (Herniotomy) because they do not resolve spontaneously and carry a high risk of incarceration. * **Option D (True):** Anatomically, the deep inguinal ring is an opening in the transversalis fascia located approximately 1.25 cm above the mid-inguinal point, which is **lateral and above** the pubic tubercle. **Clinical Pearls for NEET-PG:** 1. **Most Common Hernia:** Indirect Inguinal Hernia (Overall, in males, and in females). 2. **Richter’s Hernia:** High risk of gangrene without signs of intestinal obstruction (No absolute constipation). 3. **Littre’s Hernia:** Hernia sac containing a Meckel’s diverticulum. 4. **Maydl’s Hernia:** Retrograde strangulation (W-shaped loop) where the intervening loop inside the abdomen becomes gangrenous first. 5. **Pantaloon Hernia:** Co-existence of direct and indirect inguinal hernia sacs on the same side.

Q: A patient presented to the emergency department with severe abdominal pain. An erect radiograph was performed. Based on the findings, what should be the management?

Laparotomy. ***Laparotomy*** - **Pneumoperitoneum** (free air under diaphragm) on erect X-ray indicates **perforated viscus**, requiring immediate surgical exploration and repair. - Emergency **laparotomy** allows identification of perforation site, peritoneal lavage, and definitive repair to prevent **sepsis** and **peritonitis**. *Gastric lavage* - Used for **gastric decontamination** in poisoning cases or **upper GI bleeding**, not for perforated viscus. - Does not address the underlying **perforation** and may worsen contamination by increasing intragastric pressure. *ICD insertion* - **Intercostal drainage** is indicated for **pneumothorax** or **pleural effusion**, not abdominal pathology. - **Pneumoperitoneum** requires surgical intervention, not chest tube drainage. *USG FAST* - **Focused Assessment with Sonography in Trauma** is used to detect **free fluid** in trauma patients. - While useful for diagnostic purposes, it does not provide **definitive management** for established perforation requiring immediate surgery.

Q: Which blood group is associated with gastric cancer?

A. **Explanation:** The association between **Blood Group A** and **Gastric Cancer** (specifically the intestinal type) is a classic high-yield association in surgical oncology. **1. Why Blood Group A is Correct:** Epidemiological studies have consistently shown that individuals with Blood Group A have an approximately **20% higher risk** of developing gastric adenocarcinoma compared to other blood groups. While the exact molecular mechanism is still being researched, it is hypothesized that the A-antigen may facilitate the binding of *Helicobacter pylori* to the gastric mucosa or influence the inflammatory response, leading to chronic atrophic gastritis and subsequent neoplasia. **2. Why Other Options are Incorrect:** * **Blood Group O:** This group is strongly associated with **Peptic Ulcer Disease (PUD)**, specifically **Duodenal Ulcers**. This is often a point of confusion; remember: **A** for **A**denocarcinoma and **O** for **O**lcer (Ulcer). * **Blood Groups B and AB:** There are no significant or consistently proven clinical associations between these blood groups and the risk of gastric malignancy in standard surgical literature. **3. Clinical Pearls for NEET-PG:** * **Lauren Classification:** The association with Blood Group A is more prominent in the **Intestinal type** of gastric cancer (associated with environmental factors) rather than the Diffuse type. * **Most Common Site:** The most common site for gastric cancer globally is the **Antrum**, but the incidence of proximal (cardia) lesions is rising. * **Virchow’s Node:** Left supraclavicular lymphadenopathy is a classic sign of metastatic gastric cancer. * **Sister Mary Joseph Nodule:** Periumbilical metastasis indicating advanced disease. * **Dietary Factors:** High intake of nitrates, smoked foods, and low Vitamin C are other major risk factors.

Question 1

Which of the following is NOT true about gastric carcinoma?

Accepted Answer

Surgically non-curative lesions should not be resected.

Answer

Helicobacter pylori association is present.

Answer

D2 gastrectomy includes total gastrectomy.

Answer

Patients undergoing total gastrectomy should be given vitamin B12.

Question 2

An elderly patient presented with early satiety and weight loss, attributing these symptoms to aging. Upper endoscopy revealed a large mass in the stomach. Which statement is TRUE regarding gastric carcinoma?

Accepted Answer

The incidence is increased in patients with gastric ulcer disease.

Answer

During resection, it is safe to leave cancer at the cut edges.

Answer

Draining lymph nodes should not be removed.

Answer

It is caused by diverticulitis.

Question 3

Which of the following is NOT a risk factor for carcinoma of the stomach?

Accepted Answer

Duodenal peptic ulcer

Answer

Blood group A

Answer

Atrophic gastritis

Answer

Partial gastrectomy

Question 4

Which statement is true regarding esophageal leiomyoma?

Accepted Answer

On CT, it appears as an ovoid intramural mass with a smooth outline.

Answer

Commonly found in the proximal third of the esophagus.

Answer

It represents an overgrowth of skeletal muscle.

Answer

The overall prognosis is typically poor.

Question 5

What is the investigation of choice for esophageal stricture caused by corrosive poisoning?

Accepted Answer

Endoscopy

Answer

Barium meal

Answer

Pharyngoscopy

Answer

X-rays

Question 6

A 27-year-old woman presents with high fever and abdominal pain. Initially, the pain is around the navel but shifts to the right lower quadrant. A CT scan is provided. Which structure is affected?

Accepted Answer

Appendix

Answer

Right ovary

Answer

Ileocecal junction

Answer

Ascending colon

Question 7

Which of the following statements about hernia is false?

Accepted Answer

Indirect inguinal hernia is the most common type.

Answer

In children, indirect inguinal hernia is treated medically.

Answer

In Richter's hernia, absolute constipation is seen.

Answer

The deep inguinal ring is lateral and above the pubic tubercle.

Question 8

A patient presented to the emergency department with severe abdominal pain. An erect radiograph was performed. Based on the findings, what should be the management?

Accepted Answer

Laparotomy

Answer

Gastric lavage

Answer

ICD insertion

Answer

USG FAST

Question 9

Which blood group is associated with gastric cancer?

Accepted Answer

A

Answer

O

Answer

B

Answer

AB

Question 10

What are the commonest sites of intra-abdominal abscess?

Accepted Answer

Pelvis

Answer

Subphrenic

Answer

Paracolic

Answer

Retroperitoneal

Gastrointestinal Surgery — MCQs

Gastrointestinal Surgery — MCQs

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