Ipsilateral Facial Tactile Hypesthesia in a Patient with Lateral Medullary Syndrome

Journal of Stroke and Cerebrovascular Diseases : the Official Journal of National Stroke Association
Masahiro KatsumataNorihiro Suzuki

Abstract

Various sensory impairments have been reported in patients with lateral medullary syndrome, also known as Wallenberg syndrome. The typical sensory impairments experienced by patients with this condition are ipsilateral facial and contralateral trunk and limb thermal hypesthesia and hypoalgesia. Tactile (light touch) sensation is not generally diminished. Here we report the case of a 35-year-old man with lateral medullary infarction who had atypical sensory impairment. We examined the results from the neurological examination of the patient as well as findings from computed tomography of the head and magnetic resonance imaging. Magnetic resonance imaging showed left lateral medullary infarction caused by left posterior inferior cerebellar artery dissection. Neurological examination revealed both tactile and thermal/pain hypesthesia on the left side of the patient's face, and thermal/pain hypesthesia on his right upper and lower limbs. There are two types of tactile sensation: epicritic and protopathic. Facial tactile sensation is usually thought to be associated with epicritic tactile sensation, which travels through principal sensory nuclei of the trigeminal nerve. The protopathic pathway travels down through the spinal tract v...Continue Reading

References

Jan 11, 2000·Stroke; a Journal of Cerebral Circulation·P CerratoB Bergamasco
Dec 15, 2010·Neurological Sciences : Official Journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology·Tokinori SekineYasuo Iwasaki
Mar 8, 2011·Journal of Stroke and Cerebrovascular Diseases : the Official Journal of National Stroke Association·Takuya FukuokaNorio Tanahashi
Jan 29, 2013·BMJ Case Reports·Apostolos VrettosDiamantis Plachouras

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