Aneurysm and Dissection is part of the Cardiovascular System section of Pathology. Practise 10 exam-style MCQs for NEET PG, FMGE, INI-CET and NEET SS, each with the correct answer and a detailed explanation.
Aneurysm and Dissection MCQs compare ascending aortic aneurysms in Marfan syndrome with abdominal aneurysms driven by atherosclerosis and hypertension, and test dissection causes, syphilitic patterns, and the predominance of splenic visceral aneurysms. These are high-yield NEET PG questions for FMGE, INI-CET and NEET SS.
Sample Aneurysm and Dissection MCQs with answers
Sample MCQ #1
In Marfan's syndrome, Aortic aneurysm occurs most commonly in:
AAscending aorta
BDescending aorta
CAbdominal aorta
DArch of aorta
Show Answer & Explanation ▾
✓ Correct Answer: A. Ascending aorta
The answer is A (Ascending Aorta) Aortic aneurysms in Marfan's syndrome occur most frequently in the ascending aorta. Cardiovascular lesions in Marfan's syndrome Cardiovascular lesions are the most life-threatening features of Marfan's syndrome. Mitral valve prolapse(MVP) Loss of connective tissue support in mitral valves leaflets makes them soft and blowy creating the so-called 'floppy valve'. Mitral regurgitation frequently results. Dilatation of Ascending Aortae The media undergoes cystic necrosis (cystic medionecrosis). Loss of medial support results in progressive dilatation of aortic valve ring and root of the aorta Severe aortic incompetence Aortic dissections
Sample MCQ #2
A 59-year-old male patient presents with abdominal pain, history taking revealed he has hypertension since long duration and also smokes since very long time. Radiological investigations were performed which show pulsating mid line mass possibly aneurysm. Which of the following statements are true regarding its generation?
BInflammation leading to collagen degradation and alteration
CWeakening of vascular wall due to loss of smooth muscle cell or generation of noncollagen extracellular matrix
DAll of the above
Show Answer & Explanation ▾
✓ Correct Answer: D. All of the above
(a) Abnormal transforming growth factor-β (TGF-β) signaling: Excessive TGF-β activity alters vascular wall remodeling, primarily of the ascending aorta, leading ultimately to diminished ECM content and integrity with aneurysmal dilation. (b) The balance of collagen degradation and synthesis is altered by inflammation and associated proteases. Inflammatory cells in the setting of an aortitis or associated with atherosclerosis can be found throughout the aortic wall. The vascular wall is weakened through loss of SMCs or the inappropriate synthesis of noncollagenous or nonelastic ECM. Ischemia of the inner media occurs when there is atherosclerotic thickening of the intima, increasing the distance that oxygen and nutrients must diffuse. Reference : Robbins 10th Ed. pg 505
Sample MCQ #3
A 65-year-old patient diagnosed as having hyperlipidemia on screening tests or a routine physical and laboratory investigations. Laboratory studies show total serum cholesterol of 350 mg/dL, LDL of 280 mg/dL, HDL of 37 mg/dL, and triglycerides of 380 mg/dL. This patient is symptomatic, however, is most at risk of developing an aneurysm in which of the following anatomic locations?
AAbdominal aorta
BAscending aorta
CCoronary artery
DRenal artery
Show Answer & Explanation ▾
✓ Correct Answer: A. Abdominal aorta
The two most important causes of aortic aneurysms are atherosclerosis and hypertension; atherosclerosis is a greater factor in abdominal aortic aneurysm (AAA), while hypertension is the most common etiology associated with ascending aortic aneurysms. Reference : Robbins 10th Ed pg 506
Sample MCQ #4
Which of the following is not a cause of aneurysm?
AAtherosclerosis
BCystic medial necrosis
CSyphillis
DMonckenbergs sclerosis
Show Answer & Explanation ▾
✓ Correct Answer: D. Monckenbergs sclerosis
Monckeberg medial sclerosis is characterized by calcifications of the medial walls of muscular arteries, typically starting along the internal elastic membrane. Adults older than age 50 are most commonly affected. The calcifications do not encroach on the vessel lumen and are usually not clinically significant Reference : Robbins 10th/pg 493
Visceral artery aneurysms (VAAs) and visceral artery pseudoaneurysms (VAPAs) frequently present as lifethreatening emergencies Splenic artery aneurysms- most common VAA Hepatic artery aneurysms (HAAs)- second most common VAA Clinically, the patients with VAPAs, typically present with an antecedent history of arterial trauma or surgical manipulation Reference: Semin Intervent Radiol. 2009 Sep; 26(3): 196 - 206
Sample MCQ #7
Most common cause of dissecting hematoma is because of:
AHypertension
BMarfan's
CIatrogenic
DKawasaki
Show Answer & Explanation ▾
✓ Correct Answer: A. Hypertension
MC cause of dissection is hypertension, seen in men between 40 and 60 years of age. 2nd MC cause of dissection is cystic medial necrosis. (option b) Reference : Robbins 9th/pg 504; 8th/pg 509
What you can practise in Aneurysm and Dissection
10 Aneurysm and Dissection MCQs on Aneurysm, Dissection, Cardiovascular System — each with detailed explanations
Previous-year question practice across NEET PG, FMGE, INI-CET and NEET SS
Progress and performance tracking to measure retention
Aneurysm and Dissection MCQs compare ascending aortic aneurysms in Marfan syndrome with abdominal aneurysms driven by atherosclerosis and hypertension, and test dissection causes, syphilitic patterns, and the predominance of splenic visceral aneurysms. These are high-yield NEET PG questions for FMGE, INI-CET and NEET SS.
How many Aneurysm and Dissection questions are there, and which exams do they cover?
MedLadder includes 10 curated MCQs for Aneurysm and Dissection under Pathology (Cardiovascular System), covering NEET PG, FMGE, INI-CET and NEET SS preparation.
