Regarding Weber syndrome all are true EXCEPT: (A) Involvement of dorsal midbrain, (B) Contralateral hemiplegia, (C) Ipsilateral occulomotor palsy, (D) Contralateral parkinsonism
Answer is A. Weber Syndrome - involves damage to ventromedial brainstem (Posterior Cerebral Aery supplies this area) FEATURE : Oculomotor N. injury : Ipsilateral LMN oculomotor paralysis (down & out gaze) with wide fixed pupils Pyramidal system: Contralateral facial & hypoglossal paralysis ( coiconuclear & coicospinal tracts) C/L spastic hemiplegia Substantia nigra : Contralateral parkinsonism (rigidity, tremor)