Gastrointestinal Surgery Practice Questions

Q: Which of the following is the commonest cause of lower gastrointestinal bleed?

Hemorrhoids. **Explanation:** The correct answer is **Hemorrhoids**. In the context of clinical practice and competitive exams like NEET-PG, it is crucial to distinguish between the "most common cause" and the "most common cause of *massive* or *hospitalized* bleeding." 1. **Hemorrhoids (Correct):** These are the most frequent cause of lower gastrointestinal bleeding (LGIB) in the general population. The bleeding is typically "bright red blood per rectum" (BRBPR), painless, and occurs during or after defecation. While usually minor, its high prevalence makes it the leading cause overall. 2. **Diverticulosis (Incorrect):** This is the most common cause of **massive, painless** LGIB in the elderly that requires hospitalization. While a frequent cause, it is less common than hemorrhoids in the general community. 3. **Angiodysplasia (Incorrect):** These are vascular malformations, most commonly found in the cecum and ascending colon. They are a significant cause of occult or chronic LGIB in patients over 65 but are less common than diverticulosis or hemorrhoids. 4. **Enteric Fever (Incorrect):** Intestinal perforation and hemorrhage are complications of Typhoid (usually in the 3rd week), but this is an infectious etiology and not the leading cause of LGIB globally. **High-Yield Clinical Pearls for NEET-PG:** * **Most common cause of LGIB:** Hemorrhoids. * **Most common cause of major/massive LGIB:** Diverticulosis. * **Most common cause of LGIB in children:** Meckel’s Diverticulum. * **Initial Investigation of choice for LGIB:** Colonoscopy (after hemodynamic stabilization). * **Investigation of choice for obscure/active bleeding (0.5 ml/min):** Technetium-99m labeled RBC scan or CT Angiography.

Q: Jeep's disease is also known as?

Pilonidal sinus. **Explanation:** **Pilonidal Sinus (Option D)** is the correct answer. The term **"Jeep’s Disease"** (or Jeep Seat Disease) originated during World War II when thousands of soldiers developed pilonidal disease. It was believed that the prolonged, bumpy rides in Jeeps caused repetitive friction and trauma to the sacrococcygeal area, forcing shed hair into the skin and leading to the formation of a sinus or abscess. **Why the other options are incorrect:** * **Hemorrhoids (Option A):** These are dilated vascular plexuses in the anal canal. While common, they are associated with constipation and straining, not the specific mechanical trauma linked to "Jeep's disease." * **Fissure in ano (Option B):** This is a longitudinal tear in the anoderm, usually caused by the passage of hard stools. * **Fistula in ano (Option C):** This is a chronic abnormal communication between the epithelialized surface of the anal canal and the perianal skin, typically resulting from a previous anorectal abscess. **High-Yield Clinical Pearls for NEET-PG:** * **Etiology:** It is an **acquired** condition (not congenital), caused by the "drill effect" of hair entering the skin. * **Common Site:** Sacrococcygeal region (natal cleft). * **Risk Factors:** Hirsutism (hairy individuals), obesity, sedentary occupation, and poor local hygiene. * **Histopathology:** The sinus is lined by **squamous epithelium**, but the track is often filled with granulation tissue and tufts of hair. * **Treatment of Choice:** For chronic cases, wide local excision or flap reconstruction (e.g., **Limberg flap**) is preferred to reduce recurrence. For acute abscesses, simple incision and drainage is performed.

Q: A 41-year-old obese female patient presents with acute abdominal pain in the right hypochondrium. Ultrasonography reveals a stone in the common bile duct. What is the treatment of choice for a stone in the common bile duct?

Endoscopic sphincterotomy. ### **Explanation** The patient presents with **Choledocholithiasis** (stone in the common bile duct). The primary goal of management is the clearance of the duct to prevent complications like ascending cholangitis or gallstone pancreatitis. **Why Option C is Correct:** **Endoscopic Retrograde Cholangiopancreatography (ERCP) with Endoscopic Sphincterotomy** is the treatment of choice for CBD stones. It allows for both the diagnosis and therapeutic extraction of the stone. By cutting the biliary sphincter (sphincter of Oddi), the stone can be removed using a Dormia basket or Fogarty balloon. In patients with concomitant gallbladder stones, ERCP is usually followed by laparoscopic cholecystectomy. **Why Other Options are Incorrect:** * **Option A (Observation):** CBD stones carry a high risk of life-threatening complications (Charcot’s triad: fever, jaundice, RUQ pain). Therefore, expectant management is never recommended. * **Option B (Chenodeoxycholic acid):** Oral bile acid dissolution therapy is slow, often ineffective for large or calcified stones, and has a high recurrence rate. It is not indicated for acute CBD obstruction. * **Option D (Antibiotics):** While antibiotics are an important adjunct if the patient has signs of infection (cholangitis), they do not remove the mechanical obstruction. Definitive treatment requires stone extraction. **High-Yield Clinical Pearls for NEET-PG:** * **Gold Standard Investigation:** MRCP (Non-invasive, 95% sensitivity). * **Gold Standard Treatment:** ERCP (Invasive, therapeutic). * **Bouveret Syndrome:** Gastric outlet obstruction caused by a large gallstone impacted in the duodenum via a cholecystoduodenal fistula. * **Primary CBD Stones:** Usually brown pigment stones, formed within the duct itself (often due to stasis/infection). Secondary stones (most common) migrate from the gallbladder and are usually cholesterol stones.

Q: Which of the following is true about a Mallory-Weiss tear?

Symptoms improve with conservative management. **Explanation:** **Mallory-Weiss Syndrome (MWS)** is characterized by longitudinal mucosal lacerations at the gastroesophageal junction or gastric cardia. It typically occurs after episodes of forceful vomiting, retching, or coughing (often associated with alcohol bingeing). **1. Why Option D is correct:** The majority of Mallory-Weiss tears (80–90%) are superficial and involve only the **mucosa and submucosa**. Because the bleeding is usually arterial but from small vessels, it tends to stop spontaneously. Therefore, **conservative management**—including fluid resuscitation, acid suppression (PPIs), and observation—is the standard of care. Endoscopic intervention (clipping or thermal therapy) is reserved only for active, persistent bleeding. **2. Why other options are incorrect:** * **Options A & C:** **Hamman’s sign** (a crunching sound heard over the precordium synchronous with the heartbeat) is a classic sign of **pneumomediastinum**. This is characteristic of **Boerhaave Syndrome**, not Mallory-Weiss. * **Option B:** Mallory-Weiss involves only a partial-thickness mucosal tear. A **transmural perforation** (involving all layers of the esophagus) defines **Boerhaave Syndrome**, which is a surgical emergency. **Clinical Pearls for NEET-PG:** * **Location:** Most commonly located just below the GE junction on the lesser curvature of the stomach. * **Presentation:** Painless hematemesis following forceful retching. * **Diagnosis:** Upper GI Endoscopy (Gold Standard). * **Risk Factor:** Strong association with chronic alcohol use and hiatal hernia. * **Contrast:** Remember the "B" in **B**oerhaave stands for **B**een through all layers (transmural) and is much more severe than Mallory-Weiss.

Q: Which of the following is NOT a feature of choledocholithiasis (CBD stone)?

Septic shock. **Explanation:** The core concept to understand here is the distinction between **uncomplicated choledocholithiasis** (stones in the CBD) and its complication, **acute cholangitis**. **Why Septic Shock is the correct answer:** Choledocholithiasis refers to the presence of stones within the common bile duct. While it causes biliary obstruction, it does not inherently imply infection. **Septic shock** is a feature of **Reynolds' Pentad**, which occurs in severe cases of **Acute Cholangitis** (infection proximal to the obstruction). While choledocholithiasis is the most common cause of cholangitis, septic shock is a systemic manifestation of advanced infection, not a standard feature of the stones themselves. **Analysis of Incorrect Options:** * **Pain (A):** Most patients with CBD stones experience biliary colic or upper abdominal pain due to ductal distension and peristaltic contraction against the obstruction. * **Fever (B):** Low-grade fever can occur due to inflammation of the ductal wall. However, high-grade fever with chills (Charcot’s Triad) specifically points toward the onset of cholangitis. * **Jaundice (C):** This is a hallmark of CBD stones. Obstruction to bile flow leads to conjugated hyperbilirubinemia, clinically manifesting as yellowing of the sclera and skin. **NEET-PG High-Yield Pearls:** 1. **Charcot’s Triad:** Pain + Fever + Jaundice (Diagnostic for Acute Cholangitis). 2. **Reynolds' Pentad:** Charcot’s Triad + Hypotension (Septic Shock) + Altered Mental Status. 3. **Investigation of Choice:** **MRCP** is the gold standard for diagnosis (non-invasive). 4. **Treatment of Choice:** **ERCP** with sphincterotomy and stone extraction (therapeutic). 5. **Courvoisier’s Law:** In a patient with obstructive jaundice, if the gallbladder is palpable, the obstruction is unlikely to be a stone (usually malignancy), as stones cause chronic inflammation and a fibrosed, non-distensible gallbladder.

Q: Which anatomical location corresponds to gastric lymph node station 5?

Suprapyloric. The Japanese Gastric Cancer Association (JGCA) classification of regional lymph nodes is a high-yield topic for NEET-PG, as it dictates the extent of lymphadenectomy (D1 vs. D2) during gastrectomy. ### **Explanation of the Correct Answer** **Option A (Suprapyloric)** is the correct answer. Gastric lymph node **Station 5** refers specifically to the nodes located along the **suprapyloric artery**, situated just above the pylorus. These nodes are part of the perigastric group (N1) and are routinely removed during a D1 lymphadenectomy for distal gastric cancers. ### **Analysis of Incorrect Options** * **Option B (Splenic hilum):** This corresponds to **Station 10**. These nodes are located at the hilum of the spleen and are typically removed during a D2 dissection for proximal gastric tumors. * **Option C (Lesser curvature):** This area contains **Station 1** (Right paracardial) and **Station 3** (Nodes along the lesser curvature). * **Option D (Greater curvature):** This area contains **Station 4** (Nodes along the short gastric and gastroepiploic vessels) and **Station 2** (Left paracardial). ### **NEET-PG High-Yield Pearls** To master the JGCA classification, remember these key stations: * **Station 1 & 2:** Right and Left Paracardial. * **Station 3:** Lesser curvature. * **Station 4:** Greater curvature. * **Station 5:** Suprapyloric. * **Station 6:** Infrapyloric. * **Station 7:** Left gastric artery (Start of D2/N2 group). * **Station 8:** Common hepatic artery. * **Station 9:** Celiac axis. * **Station 11:** Splenic artery. * **Station 12:** Hepatoduodenal ligament. **Clinical Note:** A **D1 dissection** involves stations 1–6, while a **D2 dissection** (the standard of care for resectable gastric cancer) includes stations 1–12.

Q: Which is the most common symptom of achalasia?

Dysphagia. **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 esophageal peristalsis. 1. **Why Dysphagia is the correct answer:** **Dysphagia** is the hallmark and most common presenting symptom, occurring in over 95% of patients. A high-yield clinical feature of achalasia is that the dysphagia occurs for **both solids and liquids simultaneously** from the onset. This distinguishes it from esophageal malignancy, where dysphagia typically progresses from solids to liquids. 2. **Analysis of Incorrect Options:** * **Regurgitation (Option A):** This is the second most common symptom (approx. 75-90%). It involves the effortless reflux of undigested food retained in the dilated esophagus, often occurring at night or when lying flat. * **Heartburn (Option C):** While it occurs in nearly 40% of patients, it is often a "pseudo-heartburn" caused by the fermentation of retained food (lactic acid production) rather than actual acid reflux. * **Weight loss (Option D):** This occurs as the disease progresses due to decreased oral intake, but it is usually slow and less profound than the rapid weight loss seen in esophageal cancer. **NEET-PG High-Yield Clinical Pearls:** * **Gold Standard Investigation:** Esophageal Manometry (shows incomplete LES relaxation and aperistalsis). * **Barium Swallow Finding:** "Bird’s beak" or "Rat-tail" appearance of the distal esophagus. * **Pathology:** Degeneration of the **Auerbach’s (myenteric) plexus** in the esophageal wall. * **Treatment of Choice:** Laparoscopic Heller’s Myotomy with partial fundoplication (to prevent reflux).

Question 1

Which of the following is the commonest cause of lower gastrointestinal bleed?

Accepted Answer

Hemorrhoids

Answer

Angiodysplasia

Answer

Enteric fever

Answer

Diverticulosis

Question 2

Jeep's disease is also known as?

Accepted Answer

Pilonidal sinus

Answer

Hemorrhoids

Answer

Fissure in ano

Answer

Fistula in ano

Question 3

A 41-year-old obese female patient presents with acute abdominal pain in the right hypochondrium. Ultrasonography reveals a stone in the common bile duct. What is the treatment of choice for a stone in the common bile duct?

Accepted Answer

Endoscopic sphincterotomy

Answer

Observation

Answer

Chenodeoxycholic acid

Answer

Antibiotics

Question 4

Which of the following is true about a Mallory-Weiss tear?

Accepted Answer

Symptoms improve with conservative management

Answer

Hamman's mediastinum

Answer

Esophagus perforates through all layers

Answer

Crunching sound on auscultation

Question 5

Regarding the anorectal angle, what is true?

Accepted Answer

It distributes intra-abdominal forces onto the pelvic floor and plays an important role in the continence mechanism.

Answer

It is due to the pull of the external sphincter.

Answer

It is around 30 degrees at rest.

Answer

The angle increases at the time of defecation.

Question 6

Which of the following is NOT a feature of choledocholithiasis (CBD stone)?

Accepted Answer

Septic shock

Answer

Pain

Answer

Fever

Answer

Jaundice

Question 7

Which anatomical location corresponds to gastric lymph node station 5?

Accepted Answer

Suprapyloric

Answer

Splenic hilum

Answer

Lesser curvature

Answer

Greater curvature

Question 8

Sclerotherapy failure is defined as?

Accepted Answer

Unresponsiveness to two consecutive energy sclerotherapies

Answer

Unresponsiveness to three consecutive energy sclerotherapies

Answer

Remnant bleeding even after sclerotherapy for two successive hospital admissions

Answer

Failure to heal after a single treatment

Question 9

Which is the most common symptom of achalasia?

Accepted Answer

Dysphagia

Answer

Regurgitation

Answer

Heartburn

Answer

Weight loss

Question 10

A 24-year-old female presents with suspected appendicitis and undergoes surgery. Intraoperatively, the appendix appears normal, but the ileum is inflamed, enlarged, and shows multiple adhesions with surrounding fat involvement. What is the most likely diagnosis?

Accepted Answer

Ileocaecal tuberculosis

Answer

Diverticulosis

Answer

Intussusception

Answer

Carcinoid

Gastrointestinal Surgery — MCQs

Gastrointestinal Surgery — MCQs

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