Question: what are the causes of renal infarct?
Answer: thromboembolism. most common. ... 
aortic dissection.
renal artery dissection. fibromuscular dysplasia (FMD) ... 
iatrogenic (e.g. angiography)
vasculitis 4
malignant hypertension 4
renal vein occlusion 4 rare. ... 
torsion of transplant kidney 5