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Selective arterial embolization of angiomyolipoma leading to pulmonary hypertension
Lee Franklin ; Aaronson S. David ; Blaschko Sarah ; Barbosa Phil ; Wu K. Alex ; Eisenberg Michael ; Erickson A. Bradley ; McAninch W. Jack ; Department of Urology, University of California, San Francisco, California, USA
Jun 2010 (Vol. 17, Issue 3, Pages( 5232 - 5235)
PMID: 20566024

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  • OBJECTIVES: To report two cases of secondary pulmonary hypertension resulting from microsphere extravasation following selective arterial embolization of renal angiomyolipoma, its diagnosis, and management. METHODS: We reviewed the cases of two patients at the University of California, San Francisco, treated with selective arterial embolization for management of their angiomyolipoma (AML) using Tris-Acryl Gelatin Microspheres. RESULTS: Both patients were women, ages 51 and 77. Indications for treatment were the following: Patient 1 was treated for a large asymptomatic AML. Patient 2 was treated for a symptomatic, bleeding AML. Both patients developed progressive hypoxia following selective arterial embolization using Tris-Acryl Gelatin Microspheres. Each patient underwent a subsequent work up including a CT chest, echocardiogram, and chest x-ray. Both demonstrated significant pulmonary hypertension following their procedure and were discharged with supplemental oxygen. CONCLUSIONS: Selective arterial embolization of AML with microsphere extravasation into the pulmonary vasculature can lead to pulmonary hypertension and hypoxemia.

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