SCA infarction and emotional facial paresis

SCA infarct classically produces ipsilateral limb and gait ataxia, static or intention tremor, Horner's syndrome, contralateral loss of pain and temperature and decreased masseter response. Other symptoms may include deafness, impaired sweating (with Horner's) and emotional facial paresis . This derives from dorsolateral pontine pathologyThis area is distinct from the corticobulbar tract mediating voluntary facial innervation (Neuroimages, Hopf HC, Fitzek C, Marx J et al., Emotional facial paresis of pontine origin, Neurology 2000; 54: 1217).

Blogger comment-- review brainstem anatomy including lateral st tract (crossed sensory), mes tract of V (masseter r), central sympathetic tract (Horners s), lateral lemniscus (responsible for deafness), MLF