title: Multiple hereditary exostoses and stroke due to vertebral artery dissection.
abstract: Vascular complications related to multiple hereditary exostoses are uncommon. We present a 39-year-old male patient with multiple exostoses in the upper and lower limbs with an associated positive familial history of such lesions. He experienced a sudden onset of left-side ataxia and hypoesthesia secondary to a left lateral medullary infarction, which was due to a stenotic-pattern vertebral artery dissection (V1-V4). This complication is very rare as a differential diagnosis in the vertebro-basilar dissection spectrum, and a nonspecific relation has been found.
  
  
  BACKGROUND
  MHEMultiple hereditary exostosesATangiotomographyVADvertebral artery dissectionCADcervical artery dissectionOIosteogenesis imperfecta.
authors.affiliation: Stroke Clinic, Instituto Nacional de Neurología y Neurocirugía. México City, México.
authors.forename: Antonio
authors.initials: A
authors.lastname: Arauz
authors.affiliation: Stroke Clinic, Instituto Nacional de Neurología y Neurocirugía. México City, México.
authors.forename: Bernardo
authors.initials: B
authors.lastname: Hernández-Curiel
authors.affiliation: Stroke Clinic, Instituto Nacional de Neurología y Neurocirugía. México City, México.
authors.forename: Jonathan
authors.initials: J
authors.lastname: Colin-Luna
authors.affiliation: Genetics Department, Instituto Nacional de Neurología y Neurocirugía. México City, México.
authors.forename: David J
authors.initials: DJ
authors.lastname: Dávila-Ortiz de Montellano
authors.affiliation: Stroke Clinic, Instituto Nacional de Neurología y Neurocirugía. México City, México.
authors.forename: Miguel A
authors.initials: MA
authors.lastname: Barboza
keywords: Multiple hereditary exostoses; medullary ischemic stroke; osteochondroma; skeletal dysplasias; vertebral artery dissection
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