Cerebral infarction is a well-documented complication of systemic lupus ery
thematosus (SLE), that usually occurs several years after the diagnosis of
SLE. To our knowledge, however, strokes associated with vertebrobasilar art
ery involvement were not reported to present as an initial manifestation of
SLE. We report two patients, who presented with vertebrobasilar territory
infarction as an initial manifestation of SLE. Patient 1 was a 16-year-old
girl, who developed dysarthria and ataxia. MRI showed multiple infarcts in
the pens, cerebellum and thalamus. Four-vessel cerebral angiography showed
multifocal stenoses in the vertebral and basilar arteries with beaded appea
rance. Patient 2 was a 26-year-old woman, who developed headache associated
with dysarthria, dizziness and ataxia. MRI showed multiple infarcts in the
cerebellum, medulla, pens, midbrain and thalamus. Cerebral angiography rev
ealed occlusion of both vertebral arteries at the first cervical vertebral
level with non-visualization of the basilar artery. Both patients were diag
nosed as having SLE supported by laboratory results. Although rare, posteri
or circulation stroke can present as an initial manifestation of SLE, which
may be attributed to vasculitis or dissection in the vertebral/basilar art
ery. (C) 1999 Elsevier Science B.V. All rights reserved.