Inflammatory Bowel Disease Indian Medical PG Practice Questions and MCQs
Practice Indian Medical PG questions for Inflammatory Bowel Disease. These multiple choice questions (MCQs) cover important concepts and help you prepare for your exams.
Inflammatory Bowel Disease Indian Medical PG Question 1: Toxic megacolon is seen in -
- A. Crohn's disease
- B. Colonic diverticulosis
- C. Hamartomatous polyp
- D. Chronic nonspecific ulcerative colitis (Correct Answer)
Inflammatory Bowel Disease Explanation: ***Chronic nonspecific ulcerative colitis***
- **Toxic megacolon** is a severe complication of **ulcerative colitis**, characterized by acute toxic symptoms and **colonic dilation**. [1]
- It results from inflammation extending into the **muscularis propria**, leading to colonic dysfunction and paralysis.
*Crohn's disease*
- While Crohn's disease can affect any part of the gastrointestinal tract and cause severe inflammation, **toxic megacolon is rarer** in Crohn's than in ulcerative colitis. [1]
- Crohn's disease is more commonly associated with **strictures**, **fistulas**, and **skip lesions**. [1]
*Colonic diverticulosis*
- **Colonic diverticulosis** refers to the presence of small outpouchings in the colon wall, which can become inflamed (diverticulitis).
- It does not typically lead to direct **toxic megacolon**, although severe diverticulitis can rarely cause a localized form of colonic distension.
*Hamartomatous polyp*
- A **hamartomatous polyp** is a non-neoplastic growth that results from an abnormal mixture of normal tissues.
- These polyps are associated with various syndromes (e.g., Peutz-Jeghers syndrome) but are **not a cause of toxic megacolon**.
Inflammatory Bowel Disease Indian Medical PG Question 2: Which is TRUE about granulomas in Crohn's disease?
- A. Caseating
- B. Non-caseating (Correct Answer)
- C. Foreign body type
- D. Suppurative
Inflammatory Bowel Disease Explanation: ***Non-caseating***
- **Granulomas** in **Crohn's disease** are typically composed of aggregates of **macrophages**, epithelioid cells, and giant cells without central necrosis [1].
- Their presence is a key **histological feature**, though they are only found in a minority of Crohn's disease cases (about 50%) [1].
*Caseating*
- **Caseating granulomas** are characterized by a central area of **necrotic cellular debris** resembling cheese.
- They are a hallmark of **tuberculosis** and certain fungal infections, not Crohn's disease [2].
*Foreign body type*
- **Foreign body granulomas** form in response to inert foreign material and contain **foreign body giant cells** engulfing the material [3].
- While observed in various conditions, they are not the characteristic type of granuloma seen in Crohn's disease.
*Suppurative*
- **Suppurative granulomas** feature a central collection of **neutrophils** (pus) surrounded by epithelioid cells.
- These are typically associated with certain bacterial or fungal infections and are not characteristic of Crohn's disease.
**References:**
[1] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Alimentary System Disease, pp. 365-367.
[2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Inflammation and Repair, p. 109.
[3] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. (Basic Pathology) introduces the student to key general principles of pathology, both as a medical science and as a clinical activity with a vital role in patient care. Part 2 (Disease Mechanisms) provides fundamental knowledge about the cellular and molecular processes involved in diseases, providing the rationale for their treatment. Part 3 (Systematic Pathology) deals in detail with specific diseases, with emphasis on the clinically important aspects., pp. 196-197.
Inflammatory Bowel Disease Indian Medical PG Question 3: Skip lesions with non-caseating granulomas is characteristic of
- A. Hodgkin's lymphoma
- B. Ulcerative colitis
- C. Sarcoidosis
- D. Crohn's disease (Correct Answer)
Inflammatory Bowel Disease Explanation: ***Crohn's disease***
- **Skip lesions** involve discontinuous areas of inflammation in the GI tract, which is a hallmark of Crohn's disease, unlike the continuous inflammation seen in ulcerative colitis [2], [3].
- The presence of **non-caseating granulomas** (often referred to as tuberculoid granulomas due to their resemblance to tuberculosis granulomas) is a characteristic histological finding in approximately 50% of Crohn's disease cases [1], [2].
*Hodgkin's lymphoma*
- This is a type of cancer originating from lymphocytes and typically presents with **lymphadenopathy** and systemic symptoms.
- While granulomas can sometimes be found in association with Hodgkin's lymphoma (secondary granulomas due to immune response), **skip lesions** in the GI tract and primary tuberculoid granulomas are not characteristic diagnostic features.
*Ulcerative colitis*
- Ulcerative colitis is characterized by **continuous inflammation** that starts in the rectum and can extend proximally through the colon, contrasting with the skip lesions of Crohn's [3].
- It primarily affects the **mucosa and submucosa** and typically does not feature transmural inflammation or the formation of granulomas [3].
*Sarcoidosis*
- Sarcoidosis is a systemic inflammatory disease characterized by the formation of **non-caseating granulomas** in multiple organs, most commonly the lungs and lymph nodes [4].
- Although it can rarely affect the GI tract, **skip lesions** specific to the patterns seen in inflammatory bowel disease are not a defining feature; its granulomas are found within affected organs generally rather than as discontinuous intestinal lesions.
**References:**
[1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Gastrointestinal Tract, pp. 806-807.
[2] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Alimentary System Disease, pp. 366-367.
[3] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Alimentary System Disease, pp. 365-366.
[4] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. (Basic Pathology) introduces the student to key general principles of pathology, both as a medical science and as a clinical activity with a vital role in patient care. Part 2 (Disease Mechanisms) provides fundamental knowledge about the cellular and molecular processes involved in diseases, providing the rationale for their treatment. Part 3 (Systematic Pathology) deals in detail with specific diseases, with emphasis on the clinically important aspects., pp. 198-200.
Inflammatory Bowel Disease Indian Medical PG Question 4: A patient presents to the OPD with recurrent diarrhea, abdominal pain, and foul-smelling stools. The colonoscopy reveals the following findings. What is the most likely diagnosis?
- A. Pseudomembranous colitis (Correct Answer)
- B. FAP (Familial Adenomatous Polyposis)
- C. Ulcerative colitis
- D. Acute gastritis
Inflammatory Bowel Disease Explanation: ***Pseudomembranous colitis***
- The image clearly shows **yellowish-white plaques or pseudomembranes** scattered over the inflamed colonic mucosa, which are characteristic endoscopic findings of **pseudomembranous colitis**.
- The clinical symptoms of **recurrent diarrhea**, **abdominal pain**, and **foul-smelling stools** are consistent with this diagnosis, often caused by *Clostridioides difficile* infection.
*FAP (Familial Adenomatous Polyposis)*
- FAP is characterized by hundreds to thousands of **adenomatous polyps** throughout the colon, usually **smaller and more uniform** in appearance than the pseudomembranes seen here.
- While it can cause diarrhea and abdominal pain, the endoscopic appearance of discrete polyps rather than diffuse pseudomembranes differentiates it from the image shown.
*Ulcerative colitis*
- Ulcerative colitis typically presents with **continuous inflammation** of the colon, often involving **ulcerations, friability, and loss of haustra**, without the distinct pseudomembranes.
- Symptoms usually include **bloody diarrhea** and tenesmus, which differ from the foul-smelling stools mentioned.
*Acute gastritis*
- Acute gastritis is an inflammation of the **stomach lining**, not the colon, and would not be diagnosed via colonoscopy.
- Symptoms are usually upper GI-related, such as **epigastric pain, nausea, and vomiting**, not recurrent diarrhea and foul-smelling stools.
Inflammatory Bowel Disease Indian Medical PG Question 5: Assertion: Crohn's disease only affects the colon. Reason: Crohn's disease typically involves full-thickness inflammation of the bowel wall.
- A. Assertion is false, Reason is true (Correct Answer)
- B. Both Assertion and Reason are true, but Reason does not explain Assertion
- C. Both Assertion and Reason are true, and Reason explains Assertion
- D. Both Assertion and Reason are false
Inflammatory Bowel Disease Explanation: ***Assertion is false, Reason is true***
- The assertion is false because **Crohn's disease** can affect **any part of the gastrointestinal tract** from the mouth to the anus, not just the colon [1].
- The reason is true; Crohn's disease is characterized by **transmural inflammation**, meaning it involves all layers of the bowel wall.
*Both Assertion and Reason are true, but Reason does not explain Assertion*
- This option is incorrect because the **assertion itself is false**, as Crohn's disease can affect any part of the GI tract, not just the colon [1].
- While the reason is true regarding transmural inflammation, the premise of the assertion is flawed, making the relationship between the two irrelevant.
*Both Assertion and Reason are true, and Reason explains Assertion*
- This option is incorrect because the **assertion is false**; Crohn's disease is not limited to the colon.
- Therefore, the reason, though true, cannot explain a false assertion.
*Both Assertion and Reason are false*
- This option is incorrect because the **reason is true**; Crohn's disease is indeed characterized by **full-thickness (transmural) inflammation** of the bowel wall.
- Only the assertion is false.
Inflammatory Bowel Disease Indian Medical PG Question 6: Crohn's disease can be seen in which of the following locations?
- A. Jejunum only
- B. Colon only
- C. Terminal ileum and right side
- D. Mouth to anus (Correct Answer)
Inflammatory Bowel Disease Explanation: ***Mouth to anus***
- Crohn's disease is a **transmural inflammatory condition** that can affect any part of the gastrointestinal tract, from the mouth to the anus [1].
- This pan-GI involvement is a key characteristic, distinguishing it from other inflammatory bowel diseases [1].
*Jejunum only*
- While Crohn's can affect the **jejunum**, it is rarely confined to this segment alone [1].
- Such limited involvement is atypical for the widespread nature of Crohn's disease [1].
*Colon only*
- If inflammation were restricted to the **colon only**, it would be more suggestive of **ulcerative colitis**, not Crohn's disease [1].
- Crohn's disease often presents with "skip lesions," meaning affected areas are interspersed with healthy tissue, which is uncommon in diffuse colonic involvement [1].
*Terminal ileum and right side*
- Involvement of the **terminal ileum and right colon** is the most common presentation of Crohn's disease [1].
- However, it is not the *only* location, nor does it encompass the full potential extent of the disease throughout the GI tract [1].
Inflammatory Bowel Disease Indian Medical PG Question 7: All of the following are true about ulcerative colitis except:
- A. Surgery is required in a subset of severe cases.
- B. Extra-intestinal problems of UC are managed medically
- C. The highest risk of UC requiring surgery in 1st year
- D. Steroid dependent cases need surgery (Correct Answer)
Inflammatory Bowel Disease Explanation: ***Steroid dependent cases need surgery***
- While **steroid dependency** in ulcerative colitis (UC) indicates a need for alternative or escalate medications, it does not automatically necessitate surgery [1].
- Many steroid-dependent patients can be managed effectively with **immunomodulators** or **biologic therapies**, avoiding surgery.
*Surgery is required in a subset of severe cases.*
- **Severe ulcerative colitis** that is refractory to medical therapy, or complicated by toxic megacolon, perforation, or severe bleeding, often requires surgical intervention [1].
- This statement is true, as surgery can be curative for UC by removing the affected colon [1].
*Extra-intestinal problems of UC are managed medically*
- **Extra-intestinal manifestations** of ulcerative colitis, such as arthritis, skin lesions (erythema nodosum), and eye inflammation (uveitis), are typically managed with medications specific to those conditions, often in conjunction with UC treatment [1], [2].
- This statement is true, as these manifestations rarely require surgical intervention themselves.
*The highest risk of UC requiring surgery in 1st year*
- The risk of surgery in ulcerative colitis is indeed highest in the **first year after diagnosis**, particularly for patients presenting with severe disease.
- This initial period often determines the disease course and responsiveness to medical treatment.
Inflammatory Bowel Disease Indian Medical PG Question 8: A 25-year-old woman presents with bloody diarrhea and is diagnosed with ulcerative colitis. Which of the following conditions is least likely to be associated with it?
- A. Iritis
- B. Ankylosing spondylitis
- C. Pancreatitis (Correct Answer)
- D. Sclerosing cholangitis
Inflammatory Bowel Disease Explanation: ***Pancreatitis***
- While **pancreatitis** can occur with inflammatory bowel disease, it is generally considered a less common extraintestinal manifestation of **ulcerative colitis**. [1]
- Other conditions like primary sclerosing cholangitis and ocular/arthritic manifestations have a stronger and more frequent association. [2]
*Sclerosing cholangitis*
- **Primary sclerosing cholangitis (PSC)** is strongly associated with ulcerative colitis, affecting a significant portion of patients. [3]
- It involves progressive inflammation and fibrosis of the **bile ducts**, leading to cholestasis and liver damage. [3]
*Iritis*
- **Iritis** (anterior uveitis) is a known extraintestinal manifestation of inflammatory bowel disease, including ulcerative colitis. [2]
- It presents with **eye pain, redness, and photophobia**, and requires prompt ophthalmologic evaluation. [2]
*Ankylosing spondylitis*
- **Ankylosing spondylitis** is a seronegative spondyloarthropathy that has a strong association with ulcerative colitis. [4]
- It causes **chronic inflammatory back pain** and stiffness, predominantly affecting the spine and sacroiliac joints. [4]
Inflammatory Bowel Disease Indian Medical PG Question 9: A male infant presented with distension of abdomen shortly after birth with delayed passage of meconium. Subsequently a full-thickness biopsy of the rectum was performed. The rectal biopsy is likely to show:
- A. Lack of ganglion cells (Correct Answer)
- B. Fibrosis of submucosa
- C. Thickened muscularis propria
- D. Hyalinization of the muscular coat
Inflammatory Bowel Disease Explanation: ***Lack of ganglion cells***
- The clinical presentation of **abdominal distension** and **delayed meconium passage** in a neonate is highly suggestive of **Hirschsprung disease** [1].
- **Hirschsprung disease** is characterized by the **absence of ganglion cells** in the myenteric (Auerbach's) and submucosal (Meissner's) plexuses of the distal bowel, starting from the anus and extending proximally to varying degrees [1], [2].
*Fibrosis of submucosa*
- While some chronic inflammatory conditions can lead to submucosal fibrosis, it is **not the primary histopathological feature** of Hirschsprung disease.
- Submucosal fibrosis is more typically seen in conditions like **Crohn's disease** or chronic infectious colitis.
*Thickened muscularis propria*
- A **thickened muscularis propria** can be an indirect finding in Hirschsprung disease, occurring as a result of **hypertrophy** of the muscle layers proximal to the aganglionic segment, due to increased effort to propel stool past the obstructed area.
- However, the **primary diagnostic feature** on biopsy is the absence of ganglion cells, not muscle thickening, which is a secondary change [2].
*Hyalinization of the muscular coat*
- **Hyalinization** refers to a glassy, eosinophilic appearance of tissue, often due to protein accumulation or degeneration.
- This is **not a characteristic finding** in Hirschsprung disease and is typically associated with conditions like vascular injury or aging changes.
**References:**
[1] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. (Basic Pathology) introduces the student to key general principles of pathology, both as a medical science and as a clinical activity with a vital role in patient care. Part 2 (Disease Mechanisms) provides fundamental knowledge about the cellular and molecular processes involved in diseases, providing the rationale for their treatment. Part 3 (Systematic Pathology) deals in detail with specific diseases, with emphasis on the clinically important aspects., pp. 94-95.
[2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Gastrointestinal Tract, p. 759.
Inflammatory Bowel Disease Indian Medical PG Question 10: Which of the following features distinguishes Crohn's disease from Ulcerative colitis?
- A. Lymphocyte infiltrate
- B. Mucosal edema
- C. Pseudopolyps
- D. Transmural involvement (Correct Answer)
Inflammatory Bowel Disease Explanation: ***Transmural involvement***
- **Crohn's disease** is characterized by **transmural inflammation**, meaning the inflammation extends through all layers of the bowel wall [1]. This deep inflammation can lead to complications like **fistulas**, **strictures**, and **abscesses** [1], [3].
- In contrast, **Ulcerative colitis** typically involves inflammation limited to the **mucosa and submucosa** [4].
*Lymphocyte infiltrate*
- Both Crohn's disease and Ulcerative colitis involve a **lymphocyte infiltrate** as part of the chronic inflammatory process [2]. This feature is not specific enough to differentiate between the two conditions.
- The presence of lymphocytes, plasma cells, and other inflammatory cells is common in any chronic inflammatory bowel condition.
*Mucosal edema*
- **Mucosal edema** can be found in both Crohn's disease and Ulcerative colitis due to the inflammatory process. It is a general sign of inflammation rather than a specific differentiating feature.
*Pseudopolyps*
- **Pseudopolyps** are characteristic of **Ulcerative colitis**, forming as islands of regenerating mucosa in areas of severe inflammation and ulceration [4].
- While they can occasionally be seen in chronic Crohn's disease, they are much more common and prominent in Ulcerative colitis, representing a reparative process rather than primary disease activity.
**References:**
[1] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Alimentary System Disease, pp. 365-366.
[2] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Alimentary System Disease, pp. 366-367.
[3] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Gastrointestinal Tract, pp. 806-807.
[4] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Gastrointestinal Tract, p. 809.
More Inflammatory Bowel Disease Indian Medical PG questions available in the OnCourse app. Practice MCQs, flashcards, and get detailed explanations.
