Gastrointestinal Surgery — MCQs

Gastrointestinal Surgery Indian Medical PG Practice Questions and MCQs

Question 621: What is choledochotomy?

A. Removal of the bile duct
B. Opening of the common bile duct (Correct Answer)
C. Opening of the cystic duct
D. Removal of the cystic duct

Explanation: **Explanation:** **Choledochotomy** is derived from the Greek words *'choledochus'* (common bile duct) and *'tome'* (to cut). In surgical practice, it refers specifically to making a longitudinal incision into the **common bile duct (CBD)**, typically to explore the duct or remove gallstones (Choledocholithotomy). **Analysis of Options:** * **Option B (Correct):** Choledochotomy is the surgical opening of the CBD. It is most commonly performed during a Common Bile Duct Exploration (CBDE) when stones are suspected within the biliary tree that cannot be cleared endoscopically. * **Option A:** Removal of the bile duct is termed a **Choledochectomy**. This is usually performed in cases of biliary malignancies (e.g., cholangiocarcinoma) or Type IV/V choledochal cysts. * **Option C:** Opening of the cystic duct does not have a specific common clinical name but is a step during cholangiography; however, "choledocho-" specifically refers to the CBD, not the cystic duct. * **Option D:** Removal of the cystic duct is a standard part of a **Cholecystectomy** (removal of the gallbladder). **High-Yield Clinical Pearls for NEET-PG:** 1. **T-Tube Placement:** After a choledochotomy, a **T-tube** is often inserted into the CBD to provide a controlled fistula for bile drainage and to allow for postoperative cholangiography. 2. **Indications:** The classic indication for choledochotomy is **Choledocholithotomy** (removal of stones from the CBD). 3. **Anatomy:** The CBD is formed by the union of the Common Hepatic Duct and the Cystic Duct. It typically measures <6-8 mm in diameter; a diameter >10 mm on ultrasound is a strong predictor of CBD stones. 4. **Supraduodenal Choledochotomy:** This is the most common site for the incision, located in the free edge of the lesser omentum (hepatoduodenal ligament).

Question 622: A 40-year-old male presents with a painless, cystic liver enlargement of four years' duration, without fever or jaundice. What is the most likely diagnosis?

A. Amoebic liver abscess
B. Hepatoma
C. Hydatid cyst of liver (Correct Answer)
D. Choledochal cyst

Explanation: ### Explanation **Correct Answer: C. Hydatid cyst of liver** The clinical presentation of a **slow-growing, painless, cystic liver enlargement** in a patient who is otherwise asymptomatic (no fever or jaundice) is classic for a **Hydatid cyst** (caused by *Echinococcus granulosus*). These cysts grow very slowly (approximately 1 cm/year), allowing the liver to compensate, which explains the long four-year duration without acute symptoms. **Why the other options are incorrect:** * **Amoebic liver abscess:** Typically presents acutely or sub-acutely with **fever**, right upper quadrant pain, and tenderness. It is an inflammatory process, unlike the painless progression described here. * **Hepatoma (Hepatocellular Carcinoma):** Usually presents as a solid mass rather than a cystic one. It is often associated with weight loss, anorexia, and underlying cirrhosis or chronic hepatitis. * **Choledochal cyst:** This is a congenital dilatation of the biliary tree. It typically presents with the classic triad of pain, jaundice, and a palpable mass, often diagnosed in childhood (though it can present in adults). **High-Yield Clinical Pearls for NEET-PG:** * **Etiology:** Definitive host is the dog; intermediate hosts are sheep/humans (accidental). * **Imaging:** Ultrasound is the gold standard for screening. Look for the **"Whirl sign"** (detached endocyst) or **"Water lily sign"** (collapsed membranes). * **Classification:** The **Gharbi Classification** or WHO classification is used to stage the cysts. * **Treatment:** Small cysts may be treated with Albendazole. Larger or active cysts require **PAIR** (Puncture, Aspiration, Injection, Re-aspiration) or surgical excision (Langenbuch’s procedure). * **Complication:** The most feared acute complication is **anaphylactic shock** due to cyst rupture.

Question 623: Which of the following is NOT true regarding Early Post-cibal syndrome?

A. Distension of the abdomen
B. Managed conservatively
C. Hypermotility of the intestine is common
D. Surgery is usually indicated (Correct Answer)

Explanation: **Explanation:** Early Post-cibal syndrome (Early Dumping Syndrome) occurs in patients following gastric surgeries (like Billroth I/II or Roux-en-Y) due to the rapid emptying of hypertonic chyme into the small intestine. **Why Option D is the correct answer:** Surgery is **NOT** usually indicated for Early Dumping Syndrome. Approximately **80-90% of cases are successfully managed conservatively** with dietary modifications. Surgical intervention (such as converting a Billroth II to a Roux-en-Y or adding a reversed jejunal interposition) is reserved only for the small minority of patients who remain severely symptomatic despite exhaustive medical therapy for over a year. **Analysis of Incorrect Options:** * **A. Distension of the abdomen:** This is a hallmark feature. The hypertonic load in the duodenum/jejunum draws fluid from the intravascular space into the lumen (osmotic shift), leading to acute intestinal distension and symptoms like bloating and cramping. * **B. Managed conservatively:** This is true. Management includes frequent small meals, a high-protein/low-carbohydrate diet, and avoiding liquids during meals to slow gastric emptying. * **C. Hypermotility of the intestine:** The release of gastrointestinal hormones (like serotonin, neurotensin, and VIP) in response to rapid distension triggers hypermotility, leading to the characteristic post-prandial diarrhea. **Clinical Pearls for NEET-PG:** * **Timing:** Early Dumping occurs **20–30 minutes** after a meal (vasomotor + GI symptoms). Late Dumping occurs **1–3 hours** after a meal (due to reactive hypoglycemia). * **Sigstad’s Score:** Used clinically to diagnose and assess the severity of dumping syndrome. * **Drug of Choice:** **Octreotide** (somatostatin analogue) is the most effective medical treatment for refractory cases as it slows gastric emptying and inhibits insulin release.

Question 624: Ivor Lewis operation is the treatment of choice for cancer involving which part of the esophagus?

A. Middle third
B. Lower third (Correct Answer)
C. Upper third
D. Entire esophagus

Explanation: **Explanation:** The **Ivor Lewis procedure** (Transthoracic Esophagectomy) is the gold standard surgical approach for cancers involving the **lower third of the esophagus** and the gastroesophageal junction. **Why it is the correct choice:** The procedure involves a two-stage approach: 1. **Laparotomy:** To mobilize the stomach (the conduit) and perform a lymphadenectomy. 2. **Right Thoracotomy:** To resect the esophagus and perform an **intrathoracic anastomosis** between the esophagus and the gastric pull-up. This approach provides excellent exposure for tumors in the distal esophagus and allows for an adequate oncological clearance of mediastinal lymph nodes. **Analysis of Incorrect Options:** * **Upper third (C):** Cancers here are usually managed with definitive chemoradiotherapy. If surgery is required, a **McKeown (3-stage)** procedure is preferred to ensure a cervical anastomosis, as an intrathoracic anastomosis is technically difficult and oncologically unsafe at this level. * **Middle third (A):** While Ivor Lewis can be used, many surgeons prefer the McKeown approach for middle-third tumors to achieve a wider proximal margin and avoid the risk of a high-tension intrathoracic leak. * **Entire esophagus (D):** Total esophagectomy usually requires a three-stage (McKeown) or transhiatal approach to ensure complete removal and a cervical anastomosis. **High-Yield Clinical Pearls for NEET-PG:** * **McKeown Procedure:** 3 stages (Right Thoracotomy + Laparotomy + Neck incision). Best for upper/middle third. * **Transhiatal Esophagectomy (Orringer’s):** Blunt dissection without thoracotomy. Preferred in patients with poor pulmonary reserve but offers limited lymphadenectomy. * **Most common site of leak:** Cervical anastomosis (McKeown) has a higher leak rate, but intrathoracic leaks (Ivor Lewis) have a higher mortality rate. * **Conduit of choice:** Stomach (supplied by the Right Gastroepiploic artery).

Question 625: What is the treatment of choice for a 70-year-old male patient presenting with peritonitis secondary to ruptured diverticulitis?

A. Conservative management
B. Primary resection and anastomosis
C. Hamann's procedure (Correct Answer)
D. Whipple procedure

Explanation: **Explanation:** The clinical presentation of peritonitis secondary to ruptured diverticulitis (Hinchey Stage III or IV) in an elderly patient is a surgical emergency. The treatment of choice is **Hartmann’s Procedure** (noted as Hamann’s in the options). **1. Why Hartmann’s Procedure is Correct:** In the setting of fecal or purulent peritonitis, the bowel wall is often edematous, and the peritoneal cavity is heavily contaminated. Performing a primary anastomosis under these conditions carries a high risk of **anastomotic leak**, which can be fatal in a 70-year-old. Hartmann’s procedure involves resection of the diseased sigmoid colon, closure of the rectal stump, and creation of an end-descending colostomy. This "staged" approach prioritizes patient safety by removing the source of sepsis without the risk of a breakdown at the suture line. **2. Why Other Options are Incorrect:** * **Conservative Management:** This is appropriate for uncomplicated diverticulitis (Hinchey I). Peritonitis indicates a perforation, which is a surgical emergency. * **Primary Resection and Anastomosis:** While increasingly used in stable, younger patients with Hinchey II/III disease, it is generally avoided in elderly patients with frank peritonitis due to the high risk of leak and mortality. * **Whipple Procedure:** This is a pancreaticoduodenectomy used for periampullary or pancreatic head cancers, not for colonic pathology. **Clinical Pearls for NEET-PG:** * **Hinchey Classification:** Stage I (Pericolic abscess), Stage II (Pelvic abscess), Stage III (Purulent peritonitis), Stage IV (Fecal peritonitis). * **Gold Standard:** Hartmann’s remains the classic "gold standard" for Hinchey III and IV. * **Laparoscopic Lavage:** A controversial alternative for Hinchey III, but not yet the standard for elderly patients with systemic sepsis.

Question 626: Progressive dysphagia is seen in which of the following conditions?

A. Carcinoma esophagus (Correct Answer)
B. Globus hystericus
C. Presbyesophagus
D. Achalasia

Explanation: **Explanation:** **1. Why Carcinoma Esophagus is correct:** The hallmark of **Carcinoma Esophagus** is **progressive dysphagia**, which typically follows a specific pattern: it begins with difficulty swallowing solids and eventually progresses to liquids. This occurs because the malignant tumor grows circumferentially or exophytically, causing a mechanical, fixed, and worsening obstruction of the esophageal lumen. By the time dysphagia manifests, usually more than 60% of the esophageal circumference is involved. **2. Analysis of Incorrect Options:** * **Globus hystericus:** This is a functional disorder characterized by a persistent sensation of a "lump in the throat." Crucially, there is **no actual difficulty in swallowing**; in fact, the sensation often improves during meals. * **Presbyesophagus:** This refers to age-related changes in esophageal motility (reduced secondary peristalsis). While it can cause mild transit issues, it does not typically present with the relentless, worsening progression seen in malignancy. * **Achalasia Cardia:** This is a motility disorder where dysphagia is often **paradoxical** (more difficulty with liquids than solids in early stages) or occurs for both solids and liquids simultaneously from the onset. It is generally episodic or stable over long periods rather than strictly progressive. **3. Clinical Pearls for NEET-PG:** * **Rule of Thumb:** Progressive dysphagia (Solids → Liquids) = Malignancy; Intermittent/Simultaneous dysphagia (Solids + Liquids) = Motility disorder (e.g., Achalasia). * **Most common site:** Worldwide, Squamous Cell Ca is most common (upper/middle third); however, Adenocarcinoma (lower third) is rising due to GERD/Barrett’s. * **Investigation of choice:** Upper GI Endoscopy (UGIE) with biopsy. * **Initial investigation:** Barium swallow (shows "Rat-tail" or "Bird-beak" appearance in Achalasia and "Irregular apple-core" appearance in Carcinoma).

Question 627: What is the sign of lymphatic spread in carcinoma of the stomach?

A. Troisier's sign (Correct Answer)
B. Krukenberg's tumour
C. Sister Mary Joseph's nodules
D. Trousseau's sign

Explanation: **Explanation:** In carcinoma of the stomach, lymphatic spread is the most common mode of metastasis. **Troisier’s sign** refers to the clinical finding of a palpable, hard, non-tender left supraclavicular lymph node (known as **Virchow’s node**). This occurs because the stomach's lymphatic drainage eventually reaches the thoracic duct, which joins the venous system at the left subclavian vein. Malignant cells can seed the nodes at this junction via retrograde flow. **Analysis of Options:** * **Troisier's sign (Correct):** Specifically denotes the presence of Virchow’s node, indicating advanced intra-abdominal malignancy (most commonly gastric cancer) spreading via the **lymphatic system**. * **Krukenberg’s tumour:** Represents **transcoelomic (peritoneal) spread** to the ovaries. It is characterized by bilateral ovarian enlargement with "signet-ring" cells. * **Sister Mary Joseph’s nodules:** Represents metastasis to the umbilicus. While it can involve lymphatics, it is primarily classified as **direct or transcoelomic spread** along the falciform ligament. * **Trousseau’s sign:** This is a **paraneoplastic syndrome** (migratory thrombophlebitis) associated with visceral malignancies (especially pancreatic and gastric cancer), but it is a hematological/coagulation phenomenon, not a sign of lymphatic spread. **High-Yield Clinical Pearls for NEET-PG:** * **Irish’s Node:** Metastasis to the left axillary lymph node. * **Blumer’s Shelf:** A palpable mass in the pouch of Douglas on rectal examination (transcoelomic spread). * **Staging:** The most important prognostic factor in gastric cancer is the number of positive regional lymph nodes (N stage). * **Investigation of choice:** Upper GI Endoscopy with biopsy. For staging, Contrast-Enhanced CT (CECT) is preferred.

Question 628: Following oesophagectomy, what is the best substitute for the oesophagus?

A. Stomach (Correct Answer)
B. Jejunum
C. Left colon
D. Right colon

Explanation: **Explanation:** The **stomach** is the preferred and most commonly used conduit for esophageal reconstruction following esophagectomy. Its superiority is based on its **excellent intrinsic blood supply** (primarily via the right gastroepiploic artery), its robust mobility which allows it to reach as high as the neck for cervical anastomosis, and the requirement for only a **single anastomosis** (esophagogastrostomy). **Analysis of Options:** * **Stomach (Correct):** It is technically simpler to mobilize, has a reliable vascular pedicle, and demonstrates better long-term functional outcomes compared to other conduits. * **Colon (Left/Right):** The colon is considered the **second choice**. It is used when the stomach is unavailable (e.g., due to previous gastric surgery, corrosive injury, or tumor involvement). While it provides adequate length and is resistant to acid reflux, it requires three anastomoses, making the surgery more complex and increasing the risk of ischemia. * **Jejunum:** This is typically reserved for **short-segment replacements** or when both the stomach and colon are unavailable. Its use for long-segment reconstruction is limited by its complex mesenteric vascular anatomy, which often necessitates microvascular "supercharging" (free jejunal flap). **Clinical Pearls for NEET-PG:** * **Vascular Supply:** When using the stomach, the **Right Gastroepiploic Artery** is the primary vessel that must be preserved. * **Route of Choice:** The **posterior mediastinum** (the original esophageal bed) is the shortest and most physiological route for the conduit. * **Most Common Complication:** Anastomotic leak is a significant concern, but the stomach has the lowest rate of graft necrosis among the options.

Question 629: After oesophagectomy, what is the best substitute for the oesophagus?

A. Stomach (Correct Answer)
B. Jejunum
C. Left colon
D. Right colon

Explanation: **Explanation:** The **stomach** is considered the "gold standard" and the first-choice substitute for esophageal reconstruction after esophagectomy. This is primarily due to its **excellent blood supply** (based on the right gastric and right gastroepiploic arteries), its robust nature, and the fact that it requires only a **single anastomosis** (esophagogastrostomy). Anatomically, the stomach is easily mobilized and has sufficient length to reach the neck without tension. **Why other options are incorrect:** * **Left/Right Colon:** The colon is the second choice (often used if the stomach is unavailable due to prior surgery or malignancy). While it provides good length and is resistant to acid, the procedure is more complex, involving multiple anastomoses and a higher risk of graft ischemia. * **Jejunum:** The jejunum is rarely used for long-segment replacement because its mesenteric vascular arcades are complex and often too short to reach the upper thorax or neck without performing a "supercharged" microvascular anastomosis. It is typically reserved for short-segment replacements (e.g., cervical esophagus). **High-Yield Clinical Pearls for NEET-PG:** * **Route of Choice:** The **posterior mediastinum** (the original esophageal bed) is the shortest and most preferred route for the conduit. * **Vascular Basis:** When creating a gastric tube, the **right gastroepiploic artery** is the primary vessel maintaining the graft's viability. * **Colon Interposition:** The **left colon** is generally preferred over the right colon because its diameter more closely matches the esophagus and its blood supply (based on the left colic artery) is more predictable. * **Most common complication:** Anastomotic leak (most frequent in the neck) and stricture formation.

Question 630: A 30-year-old male presents with epigastric pain radiating to the back that wakes him up at night and is relieved by consuming food. He has a past history of surgery for a perforated duodenal ulcer, treated with omental patch and proton pump inhibitors and analgesics. What is the likely diagnosis?

A. Atrophic Gastritis
B. Duodenal Ulcer (Correct Answer)
C. Gastric Ulcer
D. Chronic Pancreatitis

Explanation: **Explanation:** The clinical presentation is classic for a **Duodenal Ulcer (DU)**. The diagnosis is based on the following key features: 1. **Pain-Food-Relief Sequence:** DU pain typically occurs 2–3 hours after meals (when the stomach is empty) and is **relieved by food or antacids**, as food buffers the gastric acid. In contrast, Gastric Ulcer pain is often aggravated by food. 2. **Night Pain:** Pain that wakes the patient at night (circadian rhythm of acid secretion) is highly specific for Duodenal Ulcers. 3. **Radiation:** Epigastric pain radiating to the back suggests a posterior wall ulcer. 4. **Recurrence:** The history of a prior perforated ulcer indicates a chronic acid-peptic diathesis, likely exacerbated by the continued use of analgesics (NSAIDs), which are a primary risk factor for recurrence. **Analysis of Incorrect Options:** * **Atrophic Gastritis:** Usually asymptomatic or presents with vague dyspepsia and vitamin B12 deficiency; it does not present with acute, food-relieved nocturnal pain. * **Gastric Ulcer:** Pain typically occurs **immediately after eating** (0.5–1 hour) and is often aggravated by food, leading to weight loss due to "sitophobia" (fear of eating). * **Chronic Pancreatitis:** While it causes epigastric pain radiating to the back, the pain is usually **worsened by food**, persistent, and associated with malabsorption (steatorrhea) rather than relieved by meals. **Clinical Pearls for NEET-PG:** * **Most common site:** 1st part of the duodenum (usually the anterior wall for perforation, posterior wall for bleeding). * **H. pylori:** The most common cause of DU (90-95%). * **Zollinger-Ellison Syndrome:** Suspect if ulcers are multiple, distal to the duodenum, or refractory to treatment. * **Surgery:** Omental (Graham) patch is the treatment for perforation, but it does not cure the underlying acid-peptic disease; hence, recurrence is possible if risk factors (NSAIDs/H. pylori) persist.

Practice by Chapter

Esophageal Disorders

Practice Questions

Gastric Disorders

Practice Questions

Small Intestine Pathology

Practice Questions

Appendicitis

Practice Questions

Inflammatory Bowel Disease

Practice Questions

Intestinal Obstruction

Practice Questions

Gastrointestinal Bleeding

Practice Questions

Diverticular Disease

Practice Questions

Anorectal Disorders

Practice Questions

Colorectal Neoplasms

Practice Questions

Gastrointestinal Stomas

Practice Questions

Bariatric Surgery Principles

Practice Questions

Want unlimited practice?

Get full access to all questions, explanations, and performance tracking.

Start For Free