Post renal biopsy arteriovenous fistula and pseudoaneurysm

Case contributed by Tawfiq Abukeshek
Diagnosis almost certain

Presentation

Referred due to bruit auscultated at the site of the transplanted kidney. Past history of percutaneous renal biopsy.

Patient Data

Gender: Male

A rounded hypoechoic structure is seen within the lower pole of the transplanted kidney shows yin-yang flow on color doppler interrogation.
On spectral doppler, high velocity low resistant supplying arterial flow (PSV 150 cm/s, resistive index 0.4) is seen.

Case Discussion

This case demonstrates two post-renal biopsy complications, renal arteriovenous fistulae and a renal pseudoaneurysm formation.

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