Midbrain angioma with disconjugate vertical gaze palsy.
Loss of depression in one eye with contralateral loss of elevation is rare. It has been attributed to a subnuclear lesion of the oculomotor nerve nuclear complex. We present a patient with these signs who has an arteriovenous malformation occupying his rostral midbrain. We argue that attributing these findings to a subnuclear lesion of the oculomotor nerve complex does not take into consideration the secondary, vertical action of the obliques.
Saad
N
N
National Hospital for Neurology and Neurosurgery, London.
Sanders
M D
MD
D000328:Adult; D001165:Arteriovenous Malformations / Q000150:complications*; D005133:Eye Movements; D006801:Humans; D008297:Male; D008636:Mesencephalon / Q000098:blood supply*; D015840:Oculomotor Nerve Diseases / Q000209:etiology*