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Normal color doppler ,Renal vasculature



USG shows diffusely hyperechoic kidney with loss of cortico-medullary differentiation

Color Doppler shows absent renal vein doppler signal


CT Scan axial section shows hypoattenuating thrombus in the left renal vein


CT scan Excretory phase shows enhancement of collaterals around ureter

MRA showing low signal thrombus partially obstructing the tumour

Most common cause is membranous nephropathy , Nephrotic synrome

Tumour Thrombus

FigureM – Mass , Arrow – Thrombus

Most common cause of tumour thrombus is Renal Cell Carcinoma






Reference :


b.Dr.Manjunath’s blog

c.Image consult



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