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Table 1 Clinico-radiologic characteristics of 10 cases

From: Patterns of pontine strokes mimicking Bell’s palsy

No S/A Chief complaint Neurological exam Lesion location Mechanism
A-1 M/58 Dizziness, unsteady gait, dysarthria Left facial palsy, left limb ataxia Left middle cerebellar peduncle, bilateral cerebellar hemispheres, bilateral occipital lobes Large-artery atherosclerosis
A-2 M/51 Dizziness, transient left side weakness Left facial palsy, GEN, no objective motor weakness Left pontomedullary junction, left cerebellar hemisphere, left occipital lobe Large-artery atherosclerosis
A-3 M/57 Left tinnitus, left hearing loss, unsteady gait Left facial palsy, left limb ataxia, left positive HIT, left SNHL Left superior cerebellar peduncle Large-artery atherosclerosis
A-4 M/68 Dizziness Right facial palsy, GEN From right pontine tegmentum to pontomedullary junction Large-artery atherosclerosis
A-5 M/74 Dizziness, diplopia Right facial palsy, no objective EOM limit Right basis pontis, right pontine tegmentum Large-artery atherosclerosis
B-1 M/46 Dizziness, diplopia Right eight-and-a-half syndrome [7] Right pontine tegmentum Small vessel occlusion
B-2 M/55 Dizziness, dysarthria Sixteen syndrome [8] Midline pontine tegmentum Small vessel occlusion
B-3 M/62 Dizziness, diplopia Left eight-and-a-half syndrome [7] Left pontine tegmentum Small vessel occlusion
C-1 M/49 Dizziness, diplopia, unsteady gait, left tinnitus, left hearing loss Left facial palsy, left limb ataxia, left SNHL, Brun’s nystagmus Left middle cerebellar peduncle Hemorrhagic
C-2 M/40 Neck pain, diplopia Left facial palsy, left horizontal gaze palsy Midline pontine tegmentum Hemorrhagic
  1. Abbreviations: S/A sex/age, M male, GEN gaze evoked nystagmus, HIT head impulse test, SNHL sensorineural hearing loss, EOM extraocular movement