Traumatic renal artery thrombosis with acute malignant hypertension and hyperreninemia.

Renal arterial thrombosis from blunt trauma causes delayed hypertension in many patients, but few reports have been well documented. This first report of immediate onset of malignant hypertension in a patient following blunt renal trauma, with documented histologic and renal vein renin data, stresses the pitfalls associated with the diagnosis and treatment of this condition.