Ethanol and Polyvinyl Alcohol Mixture for Transcatheter Embolization of Renal Angiomyolipoma
Uri Rimon1,2,
Mordechai Duvdevani2,3,
Alexander Garniek1,2,
Gil Golan1,2,
Paul Bensaid1,2,
Jacob Ramon2,3 and
Benyamina Morag1,2
1 Department of Diagnostic Imaging, Sheba Medical Center, Tel-Hashomer, Israel
52621.
2 Sakler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
3 Department of Urology, Sheba Medical Center, Tel-Hashomer, Israel 52621.

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Fig. 1A 35-year-old man with intrarenal bleeding in large
angiomyolipoma of left kidney. Early phase anteroposterior digital subtraction
angiogram before embolization shows hypervascular angiogenic component
(short arrows) with 4-cm aneurysm (star) with single feeder
vessels (long arrow).
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Fig. 1B 35-year-old man with intrarenal bleeding in large
angiomyolipoma of left kidney. Late phase of A shows hypervascular
angiogenic component (arrows) and 4-cm aneurysm (star).
Complete embolization was achieved (not shown).
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Fig. 1C 35-year-old man with intrarenal bleeding in large
angiomyolipoma of left kidney. Angiogram shows selective catheterization of
aneurysm feeder. Minicoil embolization was performed (not shown).
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Fig. 1D 35-year-old man with intrarenal bleeding in large
angiomyolipoma of left kidney. Anteroposterior angiogram 18 months after
embolization shows new aneurysm (star) and recurrence of
hypervascular but smaller angiogenic component (arrows). Second
embolization was performed.
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Fig. 1E 35-year-old man with intrarenal bleeding in large
angiomyolipoma of left kidney. Anteroposterior angiogram after third
embolization (29 months after first embolization) shows marked reduction in
angiogenic component.
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Fig. 1F 35-year-old man with intrarenal bleeding in large
angiomyolipoma of left kidney. Contrast-enhanced axial CT scan shows large
(largest diameter, 13 cm) angiomyolipoma (arrows) before
embolization.
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Fig. 1G 35-year-old man with intrarenal bleeding in large
angiomyolipoma of left kidney. Unenhanced axial CT scan at same level as
F after three embolizations shows reduction in tumor size
(arrows) and coil artifacts 41 months after first embolization.
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Fig. 2A 44-year-old woman with bleeding angiomyolipoma of upper pole
of left kidney. Anteroposterior digital subtraction angiogram obtained before
embolization shows moderate tumor vascularity (arrows).
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Fig. 2B 44-year-old woman with bleeding angiomyolipoma of upper pole
of left kidney. Follow-up anteroposterior angiogram 16 months after
embolization shows obliteration of angiogenic component.
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Fig. 2C 44-year-old woman with bleeding angiomyolipoma of upper pole
of left kidney. Contrast-enhanced axial CT scan in acute bleeding phase shows
tumor (arrows) with maximum diameter of 12 cm.
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Fig. 2D 44-year-old woman with bleeding angiomyolipoma of upper pole
of left kidney. Contrast-enhanced axial CT scan 37 months after embolization
shows mainly lipomatous well-defined tumor (arrows). Maximum diameter
decreased to 6.5 cm.
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Fig. 3A 24-year-old woman with tuberous sclerosis who had undergone
right nephrectomy because of uncontrolled bleeding angiomyolipoma. Preventive
embolization of angiomyolipoma in left kidney was performed. Angiogram before
embolization.
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Fig. 3B 24-year-old woman with tuberous sclerosis who had undergone
right nephrectomy because of uncontrolled bleeding angiomyolipoma. Preventive
embolization of angiomyolipoma in left kidney was performed. Angiogram after
embolization.
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Fig. 3C 24-year-old woman with tuberous sclerosis who had undergone
right nephrectomy because of uncontrolled bleeding angiomyolipoma. Preventive
embolization of angiomyolipoma in left kidney was performed. Follow-up
angiogram 60 months after first embolization shows hypertrophic capsular
artery (arrow) supplying angiomyolipoma. Lesion was embolized with
ethanol-polyvinyl alcohol mixture and minicoil.
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Fig. 3D 24-year-old woman with tuberous sclerosis who had undergone
right nephrectomy because of uncontrolled bleeding angiomyolipoma. Preventive
embolization of angiomyolipoma in left kidney was performed. Angiogram after
second embolization.
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Copyright © 2006 by the American Roentgen Ray Society.