Cerebral hemiatrophy caused by multiple developmental venous anomalies involving nearly the entire cerebral hemisphere

The authors present a case of multiple developmental venous anomalies (DVAs ) that involved nearly the entire cerebral hemisphere and that were diagnos ed by magnetic resonance (MR) imaging and selective cerebral angiography. T he ipsilateral cerebral hemisphere was mildly atrophic, and there were foca l white matter lesions on the MR images. Angiography showed multiple DVAs i nvolving nearly the entire right cerebral hemisphere. We suggest that longs tanding venous congestion caused the atrophy and white matter lesions. (C) 2001 Elsevier Science Inc. All rights reserved.