Most common cause ofAbdominal aneurysm is –
Correct Answer: Atherosclerosis
Description: Ans. is 'a' i.e., AtherosclerosisAbdominal aoic aneurysm o The most common etiology for abdominal aoic aneurysm is atherosclerosis.o Atherosclerosis causes aerial wall thining through medial destruction secondary to plaque that originates in the intima.o Besides abdominal aoa, atherosclerotic aneurysm also occur in common iliac aeries, arch and descending pa of thoracic aoa.o The usual site of abdominal aoic aneurism is below the origin of renal aery and above the bifurcation of the aoa.Remembero Most common cause of aoic aneurysm (overall) = Atherosclerosis.o Most common cause of ascending aoic aneurysm = Cystic medial necrosis.o Most common cause of descending aoic aneurysm = Atherosclerosis.o Most common cause of aneurysm of aoic arch = Atherosclerosis.o Syphilitic aneurysm affect = Ascending aoa.o Aneurysm of Takayasu aeritis affects = Aoic arch.o Most common cause of mycotic abdominal aneurysm = salmonella gastroenteritis.
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