Renal vein thrombosis

[Luis Fok]

Renal vein thrombosis is blockage of the renal vein, which carries blood away from the kidney, by a blood clot.

The clot can damage the kidney.
Symptoms may be minimal unless the clot develops suddenly.
Diagnosis is with magnetic resonance angiography, Doppler ultrasonography, or computed tomography angiography.
Treatment may include anticoagulant drugs, clot-dissolving (fibrinolytic) drugs, and removal of the clot.

(See also Overview of Blood Vessel Disorders of the Kidneys.)