Signs & Symptoms:

Rare stroke syndrome (<1% of vertebrobasilar strokes, Bassetti et al., 1994). Medial medullary infarct is associated with clinical triad of ipsilateral hypoglossal palsy, contralateral hemiparesis, and contralateral lemniscal sensory loss. Variable manifestations may include isolated hemiparesis, tetraparesis, ipsilateral hemiparesis, I or C facial palsy, ataxia, vertigo, nystagmus, dysphagia. Palatal and pharyngeal weakness rare in pure MMI, common in lateral medullary infarct.

Medial medullary stroke: report of seven patients and review of the literature. Neurology 1997 Apr;48(4):882-90. Article

Dejerine, J. Semiologie des affections du systeme nerveux. Paris: Masson, 1914. Article