Vascular Pathology Practice Questions

Q: Magic syndrome is seen in which of the following conditions?

Behcet disease. **Explanation:** **MAGIC Syndrome** (Mouth And Genital ulcers with Inflamed Cartilage) is a rare clinical entity characterized by the overlapping features of **Behcet Disease** and **Relapsing Polychondritis**. 1. **Why Behcet Disease is correct:** Behcet disease is a multi-systemic, chronic relapsing vasculitis characterized by the triad of recurrent oral aphthous ulcers, genital ulcers, and uveitis. When these features coexist with the chondritis (inflammation of cartilage in ears, nose, or respiratory tract) typical of Relapsing Polychondritis, it is termed MAGIC syndrome. The common underlying mechanism is thought to be an autoimmune response against **Type II collagen**, which is found in both cartilage and the ocular structures/vessels affected in Behcet’s. 2. **Why other options are incorrect:** * **Aphthous and Herpetiform ulcers:** These are localized clinical findings. While they are components of Behcet disease, they do not encompass the systemic vasculitis or the chondritis required for MAGIC syndrome. * **Bloom syndrome:** This is an autosomal recessive chromosomal instability disorder characterized by short stature, photosensitivity, and a "butterfly" rash. It is not associated with the vasculitic or chondritic features of MAGIC syndrome. **High-Yield Clinical Pearls for NEET-PG:** * **Behcet Disease Hallmark:** HLA-B51 association. * **Pathergy Test:** A non-specific hypersensitivity reaction to a needle prick; highly specific for Behcet’s. * **Vessel Involvement:** Behcet’s is unique because it can involve vessels of **all sizes** (small, medium, and large) on both the arterial and venous sides. * **Most common cause of death in Behcet’s:** Pulmonary artery aneurysms (rupture).

Q: A 62-year-old man presented in the medical emergency with complaints of severe headache and dizziness. His blood pressure was recorded to be 200/146 mm Hg. Pathological slide presentation is given in the image below. What is the most likely diagnosis?

Hyperplastic arteriolosclerosis. ***Hyperplastic arteriolosclerosis*** - The patient's severe hypertension (200/146 mm Hg) is characteristic of a **hypertensive crisis**, which is the typical setting for hyperplastic arteriolosclerosis [2]. - This condition is characterized by **concentric, laminated thickening of arteriole walls** (onion-skinning) due to proliferation of smooth muscle cells and reduplication of the basement membrane, often leading to luminal narrowing [1][2]. *Hyaline arteriolosclerosis* - This condition is typically associated with **benign hypertension** or diabetes, not the severe, acute hypertension seen in this case [2]. - It involves a **homogenous, pink, hyaline thickening** of arteriole walls due to plasma protein leakage and increased extracellular matrix, without the prominent cellular proliferation. *Accumulation of plasma proteins in the vessel wall* - While plasma protein accumulation does occur in hyaline arteriolosclerosis, it is a **component of the change**, not the primary diagnosis for the described severe hypertension and likely histological appearance. - This description is too general and does not capture the specific cellular and structural changes seen in severe hypertensive vasculopathy. *Neutrophilic infiltration* - **Neutrophilic infiltration** is characteristic of acute inflammation or vasculitis, such as in conditions like polyarteritis nodosa or ANCA-associated vasculitis. - It is **not a feature of hypertensive arteriolosclerosis**, which is a non-inflammatory vascular change due to chronic or severe pressure stress. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Kidney, p. 945. [2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Diseases of Infancy and Childhood, pp. 498-499.

Q: A 50-year-old patient with family history positive for premature coronary artery disease is found to have lumps on Achilles tendon. Biopsy from the lesion shows presence of:

Touton giant cell. ***Touton giant cell*** - The clinical presentation of **Achilles tendon lumps** in a patient with **family history of premature coronary artery disease** is classic for **tendinous xanthomas** seen in familial hypercholesterolemia. - **Touton giant cells** are the characteristic histologic finding in xanthomas, featuring **multiple nuclei arranged in a ring** around a central area of **foamy, lipid-laden cytoplasm**. - These multinucleated giant cells form when macrophages fuse together in response to lipid accumulation in tissues. *Foam cell* - **Foam cells** (lipid-laden macrophages) are indeed present in xanthomas and give them their characteristic appearance. - However, they are typically **mononuclear or binuclear cells**, not the specific multinucleated giant cells with ring-like nuclear arrangement. - While foam cells are a component of xanthomas, the question asks for the most characteristic cell type found on biopsy. *Fatty streak* - A **fatty streak** is an early atherosclerotic lesion found in the **intima of arterial walls**, not in tendons. - It represents a macroscopic pathologic finding in blood vessels, consisting of aggregates of foam cells. - This would not be found in a biopsy of an Achilles tendon lump. *Langhan's giant cells* - **Langhan's giant cells** are characteristic of **chronic granulomatous inflammation**, particularly in tuberculosis and sarcoidosis. - They are formed by fusion of epithelioid macrophages with nuclei arranged in a **horseshoe or peripheral pattern**, not the central ring pattern of Touton cells. - These cells are associated with cell-mediated immune responses to infections or foreign material, not lipid storage disorders.

Q: A 70-year-old retired military personnel presents with daily temporal headache and same sided blurring of vision. The Biopsy of Temporal artery was performed. All are true about the condition except:

Biopsy relieves the symptoms. ***Biopsy relieves the symptoms*** - A temporal artery biopsy is a diagnostic procedure for **Giant Cell Arteritis (GCA)** [1] and does not provide symptomatic relief. - Symptomatic relief in GCA is achieved with **corticosteroid therapy**, not by the biopsy itself. *Granuloma formation* - **Giant Cell Arteritis (GCA)** is characterized by **granulomatous inflammation** of large and medium-sized arteries [1], often involving the temporal artery. - The presence of **giant cells** and **granulomas** is a hallmark histological feature of GCA [2]. *Transmural involvement* - In GCA, the inflammation typically affects all layers of the arterial wall, leading to **transmural inflammation** [2]. - This **transmural involvement** contributes to the vessel wall thickening and luminal narrowing seen in the condition [2]. *Necrotizing vasculitis* - While GCA is a form of vasculitis, it is primarily a **granulomatous vasculitis** [1] and not typically characterized by **necrotizing inflammation** of the vessel wall. - **Necrotizing vasculitis** is more commonly associated with conditions like polyarteritis nodosa or ANCA-associated vasculitides, which have different pathological features. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Diseases of Infancy and Childhood, pp. 515-516. [2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Diseases of Infancy and Childhood, pp. 516-517.

Q: The image shows presence of:

Monckeberg arteriosclerosis. ***Monckeberg arteriosclerosis*** - This condition is characterized by **calcification of the media of muscular arteries**, without significant luminal narrowing. - It is often an incidental finding on imaging or autopsy and is typically **non-obstructive**. *Atheroma* - An atheroma is a **plaque** formed within the arterial wall, primarily composed of **lipids, inflammatory cells, smooth muscle cells, and fibrous connective tissue**. - It leads to **luminal narrowing** and can cause ischemia or thrombosis. *Hyaline arteriosclerosis* - This involves **homogenous, amorphous, pink hyaline thickening of the arteriolar walls** [3], often seen in benign hypertension and diabetes. - It results from **plasma protein leakage** across damaged endothelial cells and increased extracellular matrix production. *Hyperplastic arteriosclerosis* - Characterized by **"onion-skin" concentric thickening of arteriolar walls** due to smooth muscle cell proliferation and reduplication of the basement membrane [1][2]. - It is typically associated with **severe or malignant hypertension** [1] and can lead to luminal obliteration. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Diseases of Infancy and Childhood, pp. 498-499. [2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Kidney, p. 945. [3] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Kidney, pp. 943-945.

Question 1

What is the earliest lesion observed in atherosclerosis?

Accepted Answer

Fatty streaks

Answer

Intimal thickening

Answer

Fibrinoid necrosis

Answer

Plaque

Question 2

A 70-year-old man presents with abdominal pain and an abdominal mass. Angiography reveals an aneurysm of the abdominal aorta. What is the most likely cause?

Accepted Answer

Atherosclerosis

Answer

Trauma

Answer

Syphilis

Answer

Congenital

Question 3

A 40-year-old man presents with a 2-week history of recurrent oral ulcers, genital ulcers, intermittent arthritic pain of the knees, and abdominal pain. Physical examination reveals shallow ulcerations of the mucosa of the glans penis, as well as oral aphthous ulcers and conjunctivitis. Which of the following is the most likely diagnosis?

Accepted Answer

Behçet disease

Answer

Genital herpes

Answer

Gonorrhea

Answer

Polyarteritis nodosa

Question 4

Magic syndrome is seen in which of the following conditions?

Accepted Answer

Behcet disease

Answer

Aphthous ulcer

Answer

Herpetiform ulcer

Answer

Bloom syndrome

Question 5

What is the earliest lesion observed in atherosclerosis?

Accepted Answer

Fatty streaks

Answer

Intimal thickening

Answer

Fibrinoid necrosis

Answer

Plaque

Question 6

Atherosclerosis initiation by fibroblast plaque is mediated by injury to?

Accepted Answer

Endothelium

Answer

Smooth muscle

Answer

Media

Answer

Adventitia

Question 7

A 62-year-old man presented in the medical emergency with complaints of severe headache and dizziness. His blood pressure was recorded to be 200/146 mm Hg. Pathological slide presentation is given in the image below. What is the most likely diagnosis?

Accepted Answer

Hyperplastic arteriolosclerosis

Answer

Hyaline arteriolosclerosis

Answer

Accumulation of plasma proteins in the vessel wall

Answer

Neutrophilic infiltration

Question 8

A 50-year-old patient with family history positive for premature coronary artery disease is found to have lumps on Achilles tendon. Biopsy from the lesion shows presence of:

Accepted Answer

Touton giant cell

Answer

Foam cell

Answer

Fatty streak

Answer

Langhan's giant cells

Question 9

A 70-year-old retired military personnel presents with daily temporal headache and same sided blurring of vision. The Biopsy of Temporal artery was performed. All are true about the condition except:

Accepted Answer

Biopsy relieves the symptoms

Answer

Granuloma formation

Answer

Transmural involvement

Answer

Necrotizing vasculitis

Question 10

The image shows presence of:

Accepted Answer

Monckeberg arteriosclerosis

Answer

Atheroma

Answer

Hyaline arteriosclerosis

Answer

Hyperplastic arteriosclerosis

Vascular Pathology — MCQs

Vascular Pathology — MCQs

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