ArticleRadiology case reports2026
From imaging to impact: A case of renal arteriovenous malformation.
Article in Radiology case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
Renal arteriovenous malformations (rAVMs) are rare vascular anomalies, presenting with gross hematuria and requiring prompt diagnosis and management. We reported a case of a middle-aged male presenting with persistent and unexplained gross hematuria. Initial cystoscopy revealed a significant burden in the urinary bladder without any identifiable bleeding source. Contrast-enhanced computed tomography followed by CT angiography demonstrated a vascular nidus with early venous filling at the lower pole of the left kidney, consistent with rAVMs. The patient had a successful selective transcatheter embolization involving polyvinyl alcohol particles, coils, and a lipiodol-based embolic agent. Postembolization angiography confirmed a substantial reduction in arteriovenous shunting, with the preservation of renal parenchyma. The patient reported transient postprocedure flank pain and hematuria; however, hemoglobin levels and renal function remained stable. This situation highlights the significance of evaluating vascular causes in cases of unexplained hematuria and supports the endovascular embolization as a viable, kidney-preserving treatment option.
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