Bilateral medial medullary infarction due to bilateral vertebral artery dissection.
We describe a 52-year-old woman who experienced transient motor weakness and numbness of the left extremities and presented 2 days later with severe hemiparesis and sensory impairment of the right extremities and right lingual palsy. Magnetic resonance imaging (MRI) revealed bilateral upper medial medullary infarction, primarily in the left ventral portion. The findings of both three-dimensional (3D) computed tomographic and conventional angiography suggested dissection of both intracranial vertebral arteries (VAs). Medial medullary infarction is generally caused by atherosclerosis within a VA or anterior spinal artery. This is the first report of bilateral medial medullary infarction due to dissection of both intracranial VAs.
Department of Neurosurgery, Shibata Prefecture Hospital, Shibata City, Niigata, Japan. mfuku529@bri.niigata-u.ac.jp
Masafumi
M
Fukuda
Toyotaka
T
Aiba
Sho
S
Takahashi
D020526:Brain Stem Infarctions / Q000175:diagnosis*; D002533:Cerebral Angiography; D003937:Diagnosis, Differential; D018450:Disease Progression; D004292:Dominance, Cerebral / Q000502:physiology*; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional; D002546:Ischemic Attack, Transient / Q000175:diagnosis; D008279:Magnetic Resonance Imaging; D008526:Medulla Oblongata / Q000098:blood supply*; D008875:Middle Aged; D009460:Neurologic Examination; D014057:Tomography, X-Ray Computed; D014711:Vertebral Artery / Q000473:pathology; D020217:Vertebral Artery Dissection / Q000175:diagnosis*