title: Convexity subarachnoid hemorrhage in ischemic stroke.
abstract: OBJECTIVE
  To report three cases of convexity subarachnoid hemorrhage (cSAH) after acute ischemic stroke and review the relevant literature.
  
  
  BACKGROUND
  cSAH is an unusual presentation and the association with acute ischemic stroke has only infrequently been reported.
  
  
  METHODS
  Case series with retrospective review of the clinical presentation and neuroimaging features of patients who presented with cSAH and acute ischemic stroke.
  
  
  RESULTS
  We describe three cases of cSAH who presented with ipsilateral acute ischemic stroke. Two patients had ipsilateral ICA stenosis, with one patient developing cSAH after ICA stenting. The third patient developed cSAH in setting of small distal cortical ischemic lesions with normal cranial vasculature. None of these patients had evidence for cerebral amyloid angiopathy on magnetic resonance imaging-gradient echo (MRI-GRE) sequence. All our patients remained clinically stable with limited neurological deficit at the time of discharge.
  
  
  CONCLUSIONS
  We report three more cases linking cSAH with ischemic strokes. All of our patients had good outcome with minimal neurological deficit. cSAH should remain in differential diagnosis and early complication of acute ischemic stroke.
authors.affiliation: Department of Neurology and Neurosurgery, University of Miami Miller School of Medicine and Jackson Memorial Hospital, Miami, FL, USA.
authors.forename: N
authors.initials: N
authors.lastname: Usmani
authors.affiliation: Department of Neurology and Neurosurgery, University of Miami Miller School of Medicine and Jackson Memorial Hospital, Miami, FL, USA.
authors.forename: F U
authors.initials: FU
authors.lastname: Ahmad
authors.affiliation: Department of Neurology and Neurosurgery, University of Miami Miller School of Medicine and Jackson Memorial Hospital, Miami, FL, USA. Electronic address: skoch@med.miami.edu.
authors.forename: S
authors.initials: S
authors.lastname: Koch
mesh_terms: D000368:Aged; D002545:Brain Ischemia / Q000150:complications*; D002540:Cerebral Cortex / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D020521:Stroke / Q000150:complications*; D013345:Subarachnoid Hemorrhage / Q000209:etiology* / Q000473:pathology
keywords: Convexity subarachnoid hemorrhage; Extracranial vaso-occlusive disease; Ischemic stroke