CT showing dilatation and<unk>  of the left<unk> <unk>  in a patient with 183x183px There are no laboratory tests used to diagnose<unk> . Observing the patient's symptoms, medical history and imaging remain the fundamental source for diagnosing<unk> . Imaging is used to detect the presence of a blood clot. In an abnormal kidney with<unk> , a blood clot is present in the<unk> <unk> . In cases where the<unk> <unk>  is suddenly and/or fully blocked, the kidneys will enlarge, reaching its maximum size within a week. An ultrasound imaging can be used to observe and track the size of the kidneys in<unk>  patients. Ultrasound is not efficient for use in detecting blood flow in the<unk> <unk> s and artery. Instead a color doppler ultrasound may be used to detect<unk>  blood flow. It is most commonly used to detect<unk>  in patients who have undergone<unk>  transplantation. CT angiography is currently the top choice in diagnosing<unk> . It is non-invasive, relatively cheap and fast with high accuracy. CT scanning can be used to detect<unk>  enlargement,<unk>  tumors, blood flow and other<unk>  pathologies. An alternative is magnetic resonance angiography or MRA. It is non-invasive, fast and avoids radiation (unlike a CT scan) but it is relatively expensive. MRA produces detailed images of the<unk>  blood flow, vesicle walls, the kidneys and any surrounding tissue. An inferior venocavography with selective venography can be used to rule out the diagnoses of<unk> .
Renal vein thrombosis
Pyelonephritis
Pyonephrosis
Hydronephrosis
Glomerulonephrosis
Glomerulonephritis
Obstructive uropathy
Ureteral cancer