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Case Reports
. 2004 Mar;25(3):428-30.

A small pulmonary arteriovenous malformation as a cause of recurrent brain embolism

Kenichi Todo  1 , Hiroshi Moriwaki, Masahiro Higashi, Kohji Kimura, Hiroaki Naritomi
Affiliations
Case Reports

A small pulmonary arteriovenous malformation as a cause of recurrent brain embolism

Kenichi Todo et al. AJNR Am J Neuroradiol. 2004 Mar.

Abstract

We report a case of recurrent paradoxical brain embolism mediated through a small pulmonary arteriovenous malformation (PAVM) with a 1.8-mm-diameter feeding artery. In this case, the further recurrent stroke was prevented successfully by PAVM embolization. Although embolization therapy is currently recommended only for PAVMs with feeding arteries greater than 3 mm in diameter, the therapy may be needed also in the smaller PAVMs.

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Figures

F<sc>ig</sc> 1.
Fig 1.
Diffusion-weighted MR images. A, Diffusion-weighted image on day 1 shows a high-signal-intensity area in the left cerebellar hemisphere (arrow). B, Diffusion-weighted image on day 5 shows a new ischemic lesion in the right cerebellar hemisphere (arrow).
F<sc>ig</sc> 2.
Fig 2.
C-TCD findings before and after the embolization therapy. A, C-TCD shows many HITS (arrows) from the basilar artery before the embolization therapy. B, C-TCD failed to depict any HITS after the embolization therapy.
F<sc>ig</sc> 3.
Fig 3.
Selective pulmonary angiogram shows a single PAVM with a feeding artery diameter of 1.8 mm.
See this image and copyright information in PMC

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