Vascular Pathology — MCQs

Vascular Pathology Indian Medical PG Practice Questions and MCQs

Question 61: Onion skin thickening of the arteriolar wall is seen in which of the following conditions?

A. Atherosclerosis
B. Median calcific sclerosis
C. Hyaline arteriolosclerosis
D. Hyperplastic arteriolosclerosis (Correct Answer)

Explanation: **Hyperplastic arteriolosclerosis** is the correct answer [1]. This condition is a hallmark of **malignant hypertension** (diastolic BP >120 mmHg) [2]. The characteristic "onion skin" appearance results from the concentric, laminated thickening of the arteriolar wall due to the proliferation of smooth muscle cells and the reduplication of the basement membrane [1], [2]. This is a physiological response to severe, acute pressure elevation, often accompanied by fibrinoid necrosis (necrotizing arteriolitis), particularly in the kidneys [1]. **Analysis of Incorrect Options:** * **A. Atherosclerosis:** Affects large and medium-sized elastic and muscular arteries (e.g., aorta, coronary arteries) [1]. It is characterized by intimal plaques (atheromas) containing lipids and fibrous tissue, not concentric arteriolar thickening. * **B. Monckeberg Medial Calcific Sclerosis:** Characterized by ring-like calcifications within the media of medium-sized muscular arteries. It does not narrow the lumen and is typically an incidental finding in elderly patients. * **C. Hyaline Arteriolosclerosis:** Seen in benign hypertension and diabetes mellitus [3]. It features a homogeneous, pink, "glassy" thickening of the wall due to plasma protein leakage and increased matrix synthesis [3]. It lacks the laminated, cellular "onion skin" pattern [1]. **High-Yield Clinical Pearls for NEET-PG:** * **Onion-skinning** is also seen in **Wilson’s Disease** (Kayser-Fleischer ring appearance), **Primary Sclerosing Cholangitis** (periductal fibrosis), and **Ewing Sarcoma** (periosteal reaction). * In the kidney, hyperplastic arteriolosclerosis leads to a **"flea-bitten" appearance** due to pinpoint petechial hemorrhages on the cortical surface. * **Hyaline vs. Hyperplastic:** Remember, "Hyaline" is for *Benign* HTN/Diabetes, while "Hyperplastic" is for *Malignant* HTN. **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 62: Atherosclerosis impedes coronary blood flow by which of the following mechanisms?

A. Plaques obstruct the vein
B. Plaques obstruct the artery (Correct Answer)
C. Blood clots form outside the vessel wall
D. Hardened vessels dilate to allow blood to flow through

Explanation: **Explanation:** Atherosclerosis is a chronic inflammatory disease of the **large and medium-sized muscular arteries** (e.g., coronary, carotid, and iliac arteries) and large elastic arteries (e.g., aorta). The fundamental lesion is the **atheromatous plaque** (fibrofatty plaque), which consists of a necrotic core of cholesterol and a fibrous cap [1]. As these plaques enlarge, they protrude into the vessel lumen, causing mechanical obstruction and reducing blood flow (ischemia) to the myocardium [2]. **Analysis of Options:** * **Option B (Correct):** Atherosclerosis is strictly a disease of the **arterial system**. The physical presence of the plaque reduces the cross-sectional area of the artery, impeding flow [2]. * **Option A:** Atherosclerosis does not occur in veins because they lack the high-pressure environment and specific endothelial characteristics required for plaque formation. * **Option C:** While blood clots (thrombi) are a complication of atherosclerosis, they form **intravascularly** (inside the vessel) following plaque rupture, not outside the vessel wall [1]. * **Option D:** Atherosclerosis causes **remodeling and hardening** (loss of elasticity) of the vessel wall. These vessels become rigid and narrow rather than dilating to compensate for flow. **NEET-PG Clinical Pearls:** * **Most common site:** Abdominal aorta > Coronary arteries > Popliteal arteries > Internal carotid arteries. * **Key Cell Type:** The **Smooth Muscle Cell (SMC)** is responsible for synthesizing the collagen that forms the fibrous cap [3]. * **Critical Stenosis:** Clinical symptoms of chronic ischemia (like stable angina) typically appear when the lumen is occluded by **>70%** [4]. * **Complications:** The "vulnerable plaque" (thin fibrous cap, large lipid core) is most prone to rupture, leading to acute myocardial infarction [4]. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Diseases of Infancy and Childhood, pp. 499-500. [2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Diseases of Infancy and Childhood, pp. 506-507. [3] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Cardiovascular Disease, pp. 268-270. [4] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Cardiovascular Disease, pp. 271-272.

Question 63: Thromboangiitis obliterans (Buerger's disease) is associated with which of the following HLA types?

A. HLA - DR4
B. HLA - DR2
C. HLA - B5 (Correct Answer)
D. HLA - B27

Explanation: **Explanation:** **Thromboangiitis obliterans (Buerger’s Disease)** is a non-atherosclerotic, segmental, inflammatory vasculitis that primarily affects small and medium-sized arteries and veins in the extremities [1]. While the strongest risk factor is heavy tobacco use, genetic predisposition plays a significant role. Studies have consistently shown a strong association with **HLA-B5** (and its subtype HLA-B51) in several populations, particularly in Middle Eastern and Asian cohorts. This genetic link suggests an immune-mediated pathogenesis triggered by tobacco components. **Analysis of Options:** * **HLA-B5 (Correct):** Specifically associated with Buerger’s disease and Behçet’s disease. * **HLA-DR4:** Associated with Rheumatoid Arthritis, Giant Cell Arteritis, and Pemphigus Vulgaris. * **HLA-DR2:** Associated with Multiple Sclerosis, Systemic Lupus Erythematosus (SLE), and Goodpasture Syndrome. * **HLA-B27:** Associated with Seronegative Spondyloarthropathies (the "PAIR" acronym: Psoriatic arthritis, Ankylosing spondylitis, Inflammatory bowel disease-associated arthritis, and Reactive arthritis) [2]. **Clinical Pearls for NEET-PG:** * **Classic Triad:** Claudication (instep), Raynaud phenomenon, and Migratory superficial thrombophlebitis. * **Pathology:** Characterized by "microabscesses" within the thrombus (neutrophils surrounded by granulomatous inflammation) [1]. * **Angiography:** Shows a characteristic "corkscrew" appearance of collateral vessels. * **Treatment:** Absolute smoking cessation is the only definitive way to halt disease progression [1]. Unlike other vasculitides, it does not respond well to steroids [1]. **References:** [1] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Cardiovascular Disease, pp. 280-281. [2] 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. 49-50.

Question 64: Which of the following is NOT true about Churg-Strauss syndrome?

A. Asthma
B. Multisystem involvement of vessels
C. Intravascular granulomas (Correct Answer)
D. Peripheral eosinophilia

Explanation: ### Explanation **Churg-Strauss Syndrome (Eosinophilic Granulomatosis with Polyangiitis - EGPA)** is a small-vessel necrotizing vasculitis classically characterized by a triad of asthma, eosinophilia, and systemic vasculitis [1]. **1. Why "Intravascular granulomas" is the correct (False) statement:** In EGPA, the hallmark histological finding is **extravascular (perivascular) granulomas**, often described as "allergic granulomas" [1]. These are typically found in the interstitium of the lungs or skin, rather than inside the vessel lumen. This distinguishes it from other granulomatous conditions where granulomas may be more closely associated with the vessel wall. **2. Analysis of Incorrect Options:** * **A. Asthma:** This is the most common initial presentation (prodromal phase) and is a mandatory diagnostic criterion [1]. It often precedes the vasculitic phase by years. * **B. Multisystem involvement:** As a systemic vasculitis, it affects multiple organs, most commonly the lungs, skin (purpura), nerves (mononeuritis multiplex), and heart (the leading cause of mortality in EGPA). * **D. Peripheral eosinophilia:** A hallmark laboratory finding, usually defined as an absolute eosinophil count >1,000/µL or >10% of the total white cell count. **High-Yield Clinical Pearls for NEET-PG:** * **ANCA Status:** Only about 40–50% of patients are **p-ANCA (MPO-ANCA) positive**. The ANCA-negative cases are more likely to have cardiac involvement. * **Key Histology:** Look for necrotizing vasculitis + Eosinophilic infiltrates + Extravascular granulomas. * **Differential:** Unlike Wegener’s (GPA), EGPA is associated with **asthma** and **eosinophilia**, and it lacks the extensive necrotizing "geographic" granulomas seen in GPA. * **Most common cause of death:** Myocarditis/Myocardial infarction. **References:** [1] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Respiratory Tract Disease, pp. 322-323.

Question 65: Glomus tumor arises from which of the following cell types?

A. Modified smooth muscle cells (Correct Answer)
B. Modified skeletal muscle cells
C. Merkel discs
D. Melanocytes

Explanation: **Explanation:** **Glomus tumor** (glomangioma) is a benign, exquisitely painful tumor arising from the **glomus body**, a specialized arteriovenous anastomosis involved in thermoregulation. 1. **Why Option A is correct:** The glomus body consists of an afferent arteriole, a venous channel, and a connective tissue capsule. The tumor originates from **modified smooth muscle cells** (glomus cells) located in the wall of the Sucquet-Hoyer canal (the specialized AV shunt). Histologically, these cells appear as small, uniform, round-to-oval cells with "punched-out" nuclei and scant cytoplasm, often arranged in nests around thin-walled vascular spaces. 2. **Why incorrect options are wrong:** * **B. Modified skeletal muscle cells:** Glomus tumors are vascular in origin; skeletal muscle is not a component of the thermoregulatory glomus body. * **C. Merkel discs:** These are mechanoreceptors in the skin [1]. While both are located in the dermis, Merkel cells are neuroendocrine in nature, not myogenic. * **D. Melanocytes:** These are pigment-producing cells. While subungual melanoma is a differential for a nail bed lesion, it does not share the same cellular origin as a glomus tumor. **High-Yield Clinical Pearls for NEET-PG:** * **Classic Triad:** Paroxysmal pain, pinpoint tenderness, and hypersensitivity to cold. * **Most Common Site:** The **subungual region** (under the fingernails). * **Appearance:** Small, firm, red-blue nodules. * **Immunohistochemistry (IHC):** Positive for **SMA (Smooth Muscle Actin)** and Vimentin; negative for S100 and cytokeratin. * **Treatment:** Simple surgical excision is curative. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Skin, pp. 1144-1146.

Question 66: What is the most common site for an aneurysm?

A. Middle cerebral artery
B. Vertebrobasilar system
C. Anterior communicating artery (Correct Answer)
D. Internal carotid artery

Explanation: **Explanation:** The question refers specifically to **Berry (Saccular) Aneurysms**, which are the most common type of intracranial aneurysm [1]. These occur due to a congenital thinness of the tunica media, typically at the branching points of the Circle of Willis [1]. **1. Why Option C is Correct:** The **Anterior Communicating Artery (ACoA)** is the single most common site for Berry aneurysms, accounting for approximately **30–35%** of all cases [1]. These aneurysms are clinically significant because their rupture leads to subarachnoid hemorrhage (SAH), often presenting as the "worst headache of life" [2]. **2. Analysis of Incorrect Options:** * **Internal Carotid Artery (ICA):** The junction of the ICA and the Posterior Communicating Artery is the *second* most common site (approx. 30–35%) [1]. * **Middle Cerebral Artery (MCA):** This is the third most common site (approx. 20%) [1]. While common, it is statistically less frequent than the ACoA. * **Vertebrobasilar System:** This posterior circulation site accounts for only about 10% of Berry aneurysms [1]. **3. NEET-PG High-Yield Pearls:** * **Most common cause of SAH:** Trauma (overall); Ruptured Berry aneurysm (non-traumatic/spontaneous) [2]. * **Associated Conditions:** Autosomal Dominant Polycystic Kidney Disease (ADPKD), Ehlers-Danlos Syndrome, and Coarctation of the Aorta [1], [2]. * **Risk Factors:** Smoking and Hypertension are the most important modifiable risk factors for formation and rupture [1], [2]. * **Clinical Sign:** Aneurysms at the ICA-Posterior Communicating junction can cause **3rd Cranial Nerve Palsy** (pupil-involving) due to compression. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Central Nervous System, p. 1272. [2] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Manifestations Of Central And Peripheral Nervous System Disease, pp. 705-706.

Question 67: All of the following are small vessel vasculitis, except?

A. Wegener's granulomatosis
B. Microscopic polyangiitis
C. Polyarteritis nodosa (Correct Answer)
D. Henoch-Schonlein purpura

Explanation: The classification of vasculitis is primarily based on the size of the vessels involved, as defined by the **Chapel Hill Consensus Conference (CHCC)** [4]. ### **Why Polyarteritis Nodosa (PAN) is the Correct Answer** **Polyarteritis nodosa (PAN)** is classified as a **medium-vessel vasculitis** [3]. It typically affects medium-sized muscular arteries (e.g., renal, mesenteric, or coronary arteries) and is characterized by segmental, necrotizing inflammation [1]. A key diagnostic feature of PAN is that it **spares the smallest vessels** (capillaries, venules, and arterioles) and is **not** associated with ANCA [3]. ### **Analysis of Incorrect Options (Small Vessel Vasculitides)** These options are incorrect because they primarily involve intraparenchymal capillaries, venules, and arterioles: * **Wegener’s Granulomatosis (Granulomatosis with Polyangiitis):** A small-vessel vasculitis characterized by a triad of upper/lower respiratory tract involvement and glomerulonephritis [4]. It is strongly associated with **c-ANCA (PR3-ANCA)**. * **Microscopic Polyangiitis (MPA):** A small-vessel vasculitis similar to PAN but involving capillaries (causing pulmonary hemorrhage and glomerulonephritis) [2]. It is associated with **p-ANCA (MPO-ANCA)**. * **Henoch-Schönlein Purpura (IgA Vasculitis):** The most common small-vessel vasculitis in children, characterized by IgA immune complex deposition. It presents with the classic tetrad of palpable purpura, arthralgia, abdominal pain, and renal disease. ### **High-Yield NEET-PG Pearls** * **PAN Association:** Strongly associated with **Hepatitis B surface antigen (HBsAg)** in 30% of cases. * **Imaging in PAN:** "String of pearls" appearance on angiography due to aneurysmal dilations [1]. * **ANCA Status:** PAN is **ANCA-negative**, whereas most other small-vessel vasculitides (except HSP) are ANCA-positive [3]. * **Large Vessel Vasculitis:** Includes Giant Cell (Temporal) Arteritis and Takayasu Arteritis. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Diseases of Infancy and Childhood, pp. 517-518. [2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Diseases of Infancy and Childhood, pp. 518-519. [3] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Cardiovascular Disease, pp. 278-279. [4] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Diseases Of The Urinary And Male Genital Tracts, pp. 536-537.

Question 68: A 22-year-old construction worker falls 30 ft and fractures several bones, including his femoral shafts. Six hours later, the patient develops shortness of breath and cyanosis. Which of the following hemodynamic disorders best explains the pathogenesis of shock in this patient?

A. Acute myocardial infarction
B. Deep venous thrombosis
C. Fat embolism (Correct Answer)
D. Paradoxical embolism

Explanation: ### Explanation **Correct Answer: C. Fat Embolism** The clinical presentation of a young patient with **long bone fractures** (femoral shafts) who develops acute respiratory distress (shortness of breath, cyanosis) within a short window (typically 12–72 hours) is classic for **Fat Embolism Syndrome (FES)** [1]. **Pathogenesis:** 1. **Mechanical Obstruction:** Trauma to bone marrow or adipose tissue releases fat globules into the circulation, which obstruct pulmonary and systemic microvasculature [1]. 2. **Biochemical Injury:** Free fatty acids (FFAs) released from the fat globules cause direct toxic injury to endothelial cells, leading to capillary leak, ARDS, and potential shock [1]. --- ### Why the other options are incorrect: * **A. Acute Myocardial Infarction:** Highly unlikely in a 22-year-old without significant risk factors. While trauma can cause stress, the mechanism here is clearly embolic following orthopedic injury. * **B. Deep Venous Thrombosis (DVT):** While DVT leads to Pulmonary Embolism (PE), it typically takes **days to weeks** to develop post-immobilization [2]. A 6-hour window is too short for a thrombus to form and embolize. * **D. Paradoxical Embolism:** This occurs when a venous embolus enters the systemic circulation via a right-to-left shunt (e.g., Patent Foramen Ovale) [3]. While fat emboli can reach the brain this way, the primary cause of the respiratory distress in this context is the fat embolism itself. --- ### High-Yield Clinical Pearls for NEET-PG: * **Classic Triad of FES:** 1. Respiratory distress (Dyspnea/Hypoxemia), 2. Neurological symptoms (Confusion/Seizures), 3. **Petechial rash** (typically on the conjunctiva, neck, axilla). * **Diagnosis:** Primarily clinical (Gurd’s Criteria). * **Histopathology:** Fat globules can be visualized in the lungs or brain using **Sudan Black** or **Oil Red O** stains (requires frozen sections as routine processing dissolves fat). * **Key Association:** Most common after fractures of the **femur, tibia, and pelvis** [1]. **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. 146-147. [2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Lung, p. 705. [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. 144-145.

Question 69: Which of the following statements is false regarding polyarteritis nodosa?

A. Associated with hairy cell leukemia
B. ANCA negative
C. Granulomas are not seen
D. Bronchial arteries are most commonly involved (Correct Answer)

Explanation: **Explanation:** Polyarteritis Nodosa (PAN) is a systemic necrotizing vasculitis of small- or medium-sized muscular arteries [1]. **Why Option D is the Correct (False) Statement:** The hallmark of PAN is that it **characteristically spares the pulmonary circulation** (bronchial and pulmonary arteries). The most commonly involved vessel is the **renal artery** (leading to hypertension and renal failure, but notably without glomerulonephritis), followed by the coronary, hepatic, and mesenteric arteries. **Analysis of Other Options:** * **Option A (Associated with Hairy Cell Leukemia):** While PAN is classically associated with **Hepatitis B (30% of cases)** [1], it also has a well-documented clinical association with **Hairy Cell Leukemia**. * **Option B (ANCA negative):** PAN is a "pauci-immune" vasculitis but is typically **ANCA-negative** [1]. This distinguishes it from "Microscopic Polyangiitis" (MPA), which is P-ANCA positive. * **Option C (Granulomas are not seen):** PAN is characterized by **transmural necrotizing inflammation** with fibrinoid necrosis [2]. Unlike Wegener’s (GPA) or Churg-Strauss (EGPA), PAN **does not** feature granulomatous inflammation. **High-Yield Clinical Pearls for NEET-PG:** * **Rosary Bead Sign:** Angiography shows "string of pearls" appearance due to aneurysmal dilations at points of transmural necrosis [2]. * **Age of Lesions:** A key histological feature is that lesions of **different stages** (acute, healing, and healed) coexist in the same or different vessels [2]. * **Clinical Presentation:** Presents with "mononeuritis multiplex" (wrist/foot drop), abdominal pain (melena), and livedo reticularis. * **Rule of Spares:** PAN spares the **Pulmonary** arteries and the **Glomerulus**. **References:** [1] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Osteoarticular And Connective Tissue Disease, pp. 687-688. [2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Diseases of Infancy and Childhood, pp. 517-518.

Question 70: What is the earliest event of vascular trauma?

A. Vasoconstriction (Correct Answer)
B. Platelet adhesion
C. Platelet aggregation
D. Vasodilation

Explanation: **Explanation:** The correct answer is **Vasoconstriction**. This is the fundamental first step of **Primary Hemostasis** [1]. **1. Why Vasoconstriction is correct:** Immediately following vascular injury, the smooth muscles in the vessel wall undergo **reflex neurogenic vasoconstriction** [1]. This is further augmented by the local release of **Endothelin**, a potent vasoconstrictor secreted by damaged endothelial cells. The primary purpose of this immediate response is to reduce blood flow to the injured area, thereby minimizing blood loss and allowing pro-coagulant factors and platelets to accumulate at the site. **2. Why the other options are incorrect:** * **Platelet Adhesion (B):** This is the *second* step. Once the vessel constricts, subendothelial collagen is exposed [2]. Platelets bind to this collagen via **von Willebrand Factor (vWF)** and the **GpIb** receptor [3]. * **Platelet Aggregation (C):** This occurs *after* adhesion and activation. Platelets bind to each other using **Fibrinogen** as a bridge between **GpIIb/IIIa** receptors to form the primary platelet plug [3]. * **Vasodilation (D):** This is characteristic of the later stages of acute inflammation (mediated by histamine/nitric oxide) but is the opposite of what occurs during the immediate response to acute vascular trauma [4]. **Clinical Pearls for NEET-PG:** * **Sequence of Hemostasis:** 1. Transient Vasoconstriction $\rightarrow$ 2. Platelet Adhesion $\rightarrow$ 3. Platelet Activation/Degranulation $\rightarrow$ 4. Platelet Aggregation (Primary Plug) [1]. * **Endothelin** is the most potent endogenous vasoconstrictor involved in this stage. * **Bernard-Soulier Syndrome** is a defect in Platelet Adhesion (GpIb deficiency) [3]. * **Glanzmann Thrombasthenia** is a defect in Platelet Aggregation (GpIIb/IIIa deficiency) [3]. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Hemodynamic Disorders, Thromboembolic Disease, and Shock, pp. 126-128. [2] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Blood And Bone Marrow Disease, pp. 581-582. [3] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Hemodynamic Disorders, Thromboembolic Disease, and Shock, p. 128. [4] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Inflammation and Repair, pp. 84-85.

Practice by Chapter

Atherosclerosis

Practice Questions

Hypertensive Vascular Disease

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Aneurysms and Dissection

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Vasculitis

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Venous Disease and Thrombosis

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Vascular Tumors

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Varicose Veins and Lymphatics

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Pathology of Vascular Interventions

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Vascular Diseases in Specific Organs

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Congenital Vascular Anomalies

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