Two Cases of Horizontal Eye Movements Disorders Due to Pontine Lesions

Two cases of horizontal eye movements disorders due to pontine lesions are reported and their clinical symptoms described. Case 1, a 52-year-old female, showed right lateral gaze paralysis together with right facial paralysis, vestibular dysfunction and scanning speech after surgery on an epidermoid...

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Published inEquilibrium Research Vol. 54; no. 6; pp. 496 - 504
Main Authors Yazawa, Yoshiro, Tanaka, Hiroshi, Kataoka, Hideyuki, Kitanishi, Tsuyoshi, Ohwaki, Shigehiro, Saeki, Michio
Format Journal Article
LanguageEnglish
Published Japan Society for Equilibrium Research 1995
Subjects
abducens nucleus
lateral gaze paralysis
MLF
one-and-a-half syndriome
PPRF
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Summary:Two cases of horizontal eye movements disorders due to pontine lesions are reported and their clinical symptoms described. Case 1, a 52-year-old female, showed right lateral gaze paralysis together with right facial paralysis, vestibular dysfunction and scanning speech after surgery on an epidermoid cyst in the 4th ventricle. Case 2, a 56-year-old female, displayed right lateral gaze paralysis combined with right facial paralysis, vestibular dysfunction, right deafness and left hemiplegia following pontine hemorrhage. The right lateral gaze paralysis of both cases were analyzed and speculated to have resulted from combined disorders of the right abducens nucleus, the right PPRF (paramedian pontine reticular formation) and the right MLF (medial longitudinal fasciculus) in the pontine tegmentum.
ISSN:0385-5716
1882-577X
DOI:10.3757/jser.54.496