Complete bilateral ophthalmoplegia resistant to caloric stimulation in bilateral paramedian midbrain-thalamic infarction.
A 79-year-old woman who developed bilateral paramedian midbrain-thalamic infarction manifested complete bilateral ophthalmoplegia resistant to caloric stimulation, indicating impairment of the vestibulo-ocular reflex (VOR). Previous reports have mentioned this phenomenon but have not explicitly reported the results of caloric testing. Why a lesion apparently confined to the upper brainstem should produce impairment of the horizontal VOR remains unexplained.
Tola-Arribas
Miguel Angel
MA
Department of Neurology, Hospital Universitario Río Hortega, Valladolid, Spain. mtolaa@seneurologia.org
Vara-Castrodeza
Alejandro
A
Alonso-Santor
Juan Ernesto
JE
D000368:Aged; D002150:Caloric Tests; D017809:Fatal Outcome; D005260:Female; D006801:Humans; D020762:Infarction, Posterior Cerebral Artery / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008636:Mesencephalon / Q000000981:diagnostic imaging / Q000473:pathology*; D009886:Ophthalmoplegia / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology; D011859:Radiography; D013788:Thalamus / Q000000981:diagnostic imaging / Q000473:pathology*