<prompt> Benedikts syndrome, all are true except :Contralateral tremor3rd nerve palsyInvolvement of the penetrating branch of the basilar aeryLesion at the level of the pons  <response>: Answer is D Lesion at the level of the pons: Benedicts syndrome also known as dorsal mid brain syndrome results from a lesion in the midbrain tegmentum red nucleus. It is not a pontine syndrome. In benedicts syndrome injury to the red nucleus midbrain results in ipsilateral occulomotor palsy and contralateral tremor ,chorea and athetosis. -- Harrison Benedikts s ndrome Dorsal midbrain s ndrome The dorsal midbrain syndrome or Benedikts syndrome results from a lesion in the red nucleus or tempmentum of midbrain. It is caused by occlusion of the paramedian penetrating branches of the basilar or posterior cerebral aery or both. Signs include Ipsilateral occulomotor paresis ptosis and dilated pupil damage to fascicle of 3rd CN including parasympathetic fibres Contralteral involuntary movement -- tremor , chorea , athetosis damage to red nucleus interrupts fibers from opposite cerebellar hemisphere Contralateral hemiparesis may be present if lesion extends ventrally damage to descending coicospinal tract Contralateral hemianaesthesia may be present if lesion extends laterally damge to spinothalamic tract and medial meniscus Other Midbrain syndromes in association with injury to fascicle nucleus of CN Ill: Harrison 17th 193 Webers syndrome Injury to cerebral peduncle Nothnagels syndrome Injury to superior cerebellar peduncle Claudes syndrome Injury to red nucleus superior cerebellar peduncle 1psilateral occulomotor palsy Contralatral hemiparesis 1psilateral occulomotor palsy. Contralatral cerebellar ataxia Ipsilateral occulomotor pasly Contralateral cerebellar ataxia tremor, chorea, athetosis Benedikts nothnogels 