Medical Term:

cystic medial necrosis

 

Definition: loss of elastic and muscle fibers in the aortic media, with accumulation of mucopolysaccharide, sometimes in cystlike spaces between the fibers; a disease of unknown cause, which may be inherited and predisposes to dissecting aneurysms.

Synonym(s): Erdheim disease, medionecrosis aortae idiopathica cystica, medionecrosis of the aorta, mucoid medial degeneration

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