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Medical Science Monitor Basic Research


A Case of Intraparenchymal Pseudoaneurysms in Kidney Allograft

Mistake in diagnosis, Diagnostic / therapeutic accidents, Rare disease

Liam Antony Lorentz, Linda Tebogo Hlabangana, Malcom Davies

South Africa Department of Radiology, University of the Witwatersrand, Johannesburg, South Africa

Am J Case Rep 2016; 17:570-573

DOI: 10.12659/AJCR.897968

Available online:

Published: 2016-08-11


BACKGROUND: Percutaneous needle biopsy is routinely performed for renal allograft management. Vascular complications of the procedure include pseudoaneurysm and arterio-venous fistulae formation. Delayed diagnosis of these complications is due to their mostly asymptomatic and indolent nature.
CASE REPORT: We present a case of extensive intraparenchymal pseudoaneurysm formation within the inferior pole of the allograft, diagnosed two years following the most recent biopsy procedure.
CONCLUSIONS: Renal pseudoaneurysms may only be diagnosed years after their formation as they are typically asymptomatic.

Keywords: Biopsy, Needle - adverse effects, Aneurysm, False - etiology, Adult, computed tomography angiography, Kidney Failure, Chronic - surgery, Kidney Transplantation, Renal Artery