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mycotic aneurysms
radiological features

false aneurysm forms, which is unstable and highly prone to rupture. The most common organisms are Staphylococcus aureus and Salmonella spp.

centric aneurysmal sac in an odd location for atheromatous disease
often wild, multilobulated appearance
interruption of arterial wall calcification
adjacent soft tissue stranding
adjacent collection +/- gas
adjacent reactive lymphadenopathy
hazy aortic wall with rupture 4
retroperitoneal para-aortic fluid collection and vertebral erosion
thrombus formation within a false lumen after aneurysmal rupture


Buerger disease
Characteristic angiographic findings

extensive arterial occlusive disease
corkscrew collateral vessels
more than one limb is usually affected
predominantly the lower limbs
intervening normal arteries
sparing of the larger inflow vessels