['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']