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Updated: Sep 20, 2025

Point-Of-Care Ultrasound Screening for Proximal Lower Extremity Deep Venous Thrombosis
Published on: February 10, 2023
Incidentally found focal xanthogranulomatous pyelonephritis with extensive venous thrombus
Adam M Daily1, Ryan P Donahue1,2, Semra Olgac3
1Section of Urology and Renal Transplantation, Virginia Mason Franciscan Health, Seattle, Washington, USA.
Abstract:
A 71-year-old woman with history of asthma presented with 2 months history of shortness of breath; on imaging an incidental left renal mass was noted. Subsequent renal protocol CT was obtained that showed a 4.5 cm left upper pole exophytic mass with renal vein thrombus extending into the inferior vena cava to the level of the caudate lobe concerning for renal cell carcinoma. She underwent an open left radical nephrectomy and IVC thrombectomy with subsequent postoperative pathology demonstrating xanthogranulomatous pyelonephritis without renal cell carcinoma.
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