Gastrointestinal Surgery Practice Questions

Q: Which of the following is not related to carcinoma of the stomach?

Blood group O. **Explanation:** The correct answer is **Blood group O** because it is classically associated with **Peptic Ulcer Disease (Duodenal Ulcers)**, whereas **Blood group A** is the one specifically linked to an increased risk of **Gastric Carcinoma**. **1. Why Blood Group O is the correct answer:** Epidemiological studies have consistently shown that individuals with Blood Group O have a higher predisposition to *H. pylori* colonization leading to duodenal ulcers, but they do not have an increased risk for gastric malignancy. In contrast, Blood Group A is a well-known genetic risk factor for the **diffuse type** of gastric adenocarcinoma. **2. Analysis of other options:** * **Blood group A:** Strongly associated with gastric cancer. The hypothesized mechanism involves differences in mucosal cell surface antigens that may facilitate malignant transformation or alter the immune response to chronic inflammation. * **Smoked fish:** These foods are high in **polycyclic aromatic hydrocarbons** and salt. High salt intake acts as a mucosal irritant, leading to chronic atrophic gastritis, which is a precursor to the intestinal type of gastric cancer. * **Nitrosoamines:** These are potent carcinogens formed from dietary nitrates and nitrites (found in preserved meats and fertilizers). They induce DNA damage and are major environmental drivers of gastric carcinogenesis. **Clinical Pearls for NEET-PG:** * **Lauren Classification:** Gastric cancer is divided into **Intestinal** (associated with environmental factors like smoked foods/nitrosamines) and **Diffuse** (associated with Blood Group A and E-cadherin/CDH1 mutations). * **Most common site:** Historically the antrum, but the incidence of proximal/cardia cancers is rising. * **Virchow’s Node:** Left supraclavicular lymphadenopathy (Troisier’s sign) is a classic sign of metastatic gastric cancer. * **Sister Mary Joseph Nodule:** Umbilical metastasis, most commonly from gastric origin.

Q: What is the treatment of choice in multiple jejunal strictures?

Stricturoplasty. **Explanation:** The treatment of choice for multiple jejunal strictures, particularly in the context of **Crohn’s disease** or **Intestinal Tuberculosis**, is **Stricturoplasty**. The underlying medical concept is **bowel preservation**. In conditions like Crohn’s, where strictures are often multiple and recurrent, performing multiple resections would lead to "Short Bowel Syndrome," resulting in severe malabsorption. Stricturoplasty allows for the relief of obstruction by widening the narrowed lumen without removing any length of the small intestine. **Analysis of Options:** * **Option A (Resection and anastomosis):** While effective for a single, long, or complicated stricture (e.g., phlegmon or perforation), it is avoided in multiple strictures to prevent excessive loss of functional bowel. * **Option B (Noble’s procedure):** This is a historical "plication" technique used to prevent recurrent adhesions by suturing bowel loops together. it does not address the internal narrowing of strictures. * **Option D (End-to-side anastomosis):** This is a method of reconstruction after resection, not a primary treatment for multiple strictures. **Clinical Pearls for NEET-PG:** 1. **Heineke-Mikulicz Stricturoplasty:** Used for short strictures (≤ 10 cm). It involves a longitudinal incision and transverse closure. 2. **Finney Stricturoplasty:** Used for medium-length strictures (10–20 cm). 3. **Michelassi Stricturoplasty:** A side-to-side isoperistaltic technique used for very long, complex strictures (> 20 cm). 4. **Contraindications:** Stricturoplasty should not be performed if there is a perforation, malignancy, or if the stricture is too close to a planned resection site.

Q: In the Wharfe assessment of impacted third molars, what does 'A' stand for?

Angulation of 3rd molar. The **WHARFE assessment** is a clinical scoring system used to predict the difficulty of surgical extraction for impacted mandibular third molars. It was developed by MacGregor to provide a more objective evaluation than traditional classifications. ### Explanation of the Correct Answer In the WHARFE mnemonic, **'A' stands for Angulation of the 3rd molar**. This refers to the position of the long axis of the third molar in relation to the second molar (e.g., mesioangular, horizontal, vertical, or distoangular). Distoangular impactions are generally considered the most difficult to extract in the mandible, whereas mesioangular impactions are typically the easiest. ### Analysis of Incorrect Options * **Axis of rotation:** While the path of delivery is important in surgery, it is not a component of the WHARFE acronym. * **Application of elevator:** This refers to a surgical technique/step, not a preoperative assessment parameter. * **Amber line:** This is a distractor. The **Winter’s Lines** (Red, Amber, and White) are used to assess the depth of impaction, but the WHARFE acronym specifically uses the term "Depth" (from the Amber line) rather than the word "Amber" itself for the letter 'A'. ### High-Yield Facts for NEET-PG To memorize the **WHARFE** assessment components: * **W: Winter’s Classification** (Angulation) * **H: Height** of the mandible (Density of bone) * **A: Angulation** of the second molar * **R: Root** shape and number (Curvature, bulbous roots) * **F: Follicle** size (Presence of cyst or space) * **E: Exit** path (Space available for delivery) **Clinical Pearl:** The most common type of mandibular impaction is **Mesioangular**, while the most common maxillary impaction is **Vertical**. According to the WHARFE score, the higher the total score, the greater the surgical difficulty.

Q: What is the most common cause of painless bleeding per rectum in a man?

Piles (Hemorrhoids). **Explanation:** The correct answer is **Piles (Hemorrhoids)**. In clinical practice and for the NEET-PG exam, internal hemorrhoids are recognized as the most common cause of painless, bright red bleeding per rectum (hematochezia) across all age groups and genders. **Why Piles is correct:** Internal hemorrhoids originate above the dentate line, where the mucosa is supplied by visceral nerves (insensitive to pain). The classic presentation is "splashing the pan"—painless, bright red bleeding occurring at the end of defecation. While external hemorrhoids can be painful if thrombosed, the primary symptom of internal piles is bleeding without pain. **Analysis of Incorrect Options:** * **Fissure-in-ano:** This is the most common cause of **painful** bleeding per rectum. The pain is typically sharp, "knife-like," and persists for hours after defecation. * **Diverticulosis:** While this is the most common cause of **massive, brisk** lower GI bleeding in the elderly, it is less frequent in the general population compared to hemorrhoids. * **Colorectal Cancer:** Though a critical differential for painless bleeding, it is statistically less common than hemorrhoids, especially in younger demographics. **High-Yield Clinical Pearls for NEET-PG:** * **Most common cause of painless bleeding (Overall):** Hemorrhoids. * **Most common cause of painful bleeding:** Anal Fissure. * **Most common cause of massive lower GI bleed:** Diverticulosis. * **Most common cause of rectal bleeding in children:** Meckel’s Diverticulum or Juvenile Polyps. * **Rule of Thumb:** Any patient over 40 presenting with new-onset rectal bleeding must undergo a digital rectal examination (DRE) and proctoscopy/colonoscopy to rule out malignancy.

Q: Resection of the adjacent gut is most often required in which of the following conditions?

Enterogenous cyst. **Explanation:** The correct answer is **Enterogenous cyst**. The primary reason resection of the adjacent gut is required in this condition is the **shared blood supply**. 1. **Enterogenous Cyst (Correct):** These are developmental anomalies (duplication cysts) that arise from the mesenteric border of the intestine. Crucially, they share a common muscular wall and a common blood supply with the adjacent segment of the bowel. Because the blood supply is intertwined, it is surgically impossible to excise the cyst alone without compromising the vascularity of the neighboring gut. Therefore, formal resection of the cyst along with the involved segment of the bowel is mandatory. 2. **Chylolymphatic Cyst (Incorrect):** These are the most common type of mesenteric cysts. They have an independent blood supply and are thin-walled. They can usually be "enucleated" (shelled out) without necessitating bowel resection. 3. **Mesenteric Dermoid Cyst (Incorrect):** These are rare, germ-cell-derived cysts. Like most other mesenteric cysts, they do not typically share a common wall or primary blood supply with the intestine, allowing for simple excision. 4. **Simple Cyst (Incorrect):** These are serous cysts of lymphatic origin. They are easily separable from the bowel and do not require intestinal resection. **High-Yield Clinical Pearls for NEET-PG:** * **Most common site for Enterogenous cysts:** Terminal Ileum. * **Pathological hallmark:** They are lined by intestinal mucosa (often ectopic gastric mucosa, which can lead to perforation or hemorrhage). * **Surgical Principle:** "Enucleation" is the treatment of choice for most mesenteric cysts, **EXCEPT** for Enterogenous cysts, where "Resection-Anastomosis" is the rule. * **Differential Diagnosis:** On ultrasound, a "double-wall sign" (inner echogenic mucosa and outer hypoechoic muscularis) is highly suggestive of an enterogenous/duplication cyst.

Q: A pregnant lady at 16 weeks gestation presents with acute appendicitis and a TLC of 24,000. What is the recommended management?

Early surgery. **Explanation:** **1. Why Early Surgery is Correct:** Acute appendicitis is the most common non-obstetric surgical emergency during pregnancy. The standard of care is **early surgical intervention** (Laparoscopic or Open Appendectomy), regardless of the trimester. In this case, the high TLC (24,000) suggests significant inflammation. Delaying surgery increases the risk of **perforation**, which is associated with a much higher rate of fetal loss (up to 20-30%) and maternal morbidity compared to non-perforated cases (approx. 3-5% fetal loss). Pregnancy-related anatomical changes (displacement of the appendix) often mask classic signs, making early intervention crucial to prevent complications. **2. Why Other Options are Wrong:** * **Option A & D:** Conservative or medical management is generally avoided because the risk of rupture is higher in pregnancy due to the lack of omental "wrapping" (the gravid uterus prevents the omentum from reaching the appendix). Recurrence or progression to peritonitis poses a lethal threat to the fetus. * **Option C:** Appendicitis is not an indication for termination of pregnancy. With modern anesthesia and surgical techniques, the pregnancy can be safely maintained. **Clinical Pearls for NEET-PG:** * **Diagnosis:** The most common symptom is still **RLQ pain**, but the location of the appendix shifts **superiorly and laterally** as the uterus grows (Alder’s sign). * **Imaging:** Ultrasound is the first-line investigation; MRI is the preferred second-line if USG is inconclusive. * **Surgical Timing:** The second trimester (as in this patient) is often considered the "safest" time for surgery, but surgery should never be delayed based on the trimester if appendicitis is suspected. * **Laparoscopy:** Currently considered safe in all trimesters, provided intra-abdominal pressure is maintained at 10–12 mmHg.

Question 1

Which of the following is not related to carcinoma of the stomach?

Accepted Answer

Blood group O

Answer

Blood group A

Answer

Smoked fish

Answer

Nitrosoamines

Question 2

What is the treatment of choice in multiple jejunal strictures?

Accepted Answer

Stricturoplasty

Answer

Resection and end-to-end anastomosis

Answer

Nobel's procedure

Answer

End-to-side anastomosis

Question 3

In the Wharfe assessment of impacted third molars, what does 'A' stand for?

Accepted Answer

Angulation of 3rd molar

Answer

Axis of rotation

Answer

Application of elevator

Answer

Amber line

Question 4

What is the most common cause of painless bleeding per rectum in a man?

Accepted Answer

Piles (Hemorrhoids)

Answer

Fissure-in-ano

Answer

Diverticulosis

Answer

None of the above

Question 5

All of the following are true regarding Superior Mesenteric Artery Syndrome, except?

Accepted Answer

Most common in the 6th-7th decade of life

Answer

Caused by compression of the third part of the duodenum

Answer

Common in young, underweight females

Answer

Does not occur in obese individuals

Question 6

Resection of the adjacent gut is most often required in which of the following conditions?

Accepted Answer

Enterogenous cyst

Answer

Chylolymphatic cyst

Answer

Mesenteric dermoid cyst

Answer

Simple cyst

Question 7

What is true about enterocutaneous fistula?

Accepted Answer

No skin damage

Answer

High output fistula drains 500 ml/day

Answer

Malignancy is the most common cause

Answer

Fluid and electrolyte loss can occur

Question 8

A pregnant lady at 16 weeks gestation presents with acute appendicitis and a TLC of 24,000. What is the recommended management?

Accepted Answer

Early surgery

Answer

Conservative treatment always

Answer

Appendectomy with termination of pregnancy

Answer

Medical treatment with surgery on recurrence

Question 9

A 60-year-old man complains of recurrent attacks of painless rectal bleeding. Colonoscopy reveals normal mucosa between the cecum and the anal verge. What is the most helpful test to determine the cause of bleeding?

Accepted Answer

Angiography to look for angiodysplasia

Answer

Technetium scan for Meckel's diverticulum

Answer

Upper GI endoscopy for peptic ulcer

Answer

Small-bowel series for tumor

Question 10

Which of the following statements about Pseudomyxoma peritonei is FALSE?

Accepted Answer

Chemotherapy has a significant role in management

Answer

More common in females

Answer

Can arise from a locally malignant tumor

Answer

Requires surgical debulking

Gastrointestinal Surgery — MCQs

Gastrointestinal Surgery — MCQs

On this page

Practice by Chapter

Want unlimited practice?