title: Afferent pupillary defect in pineal region tumour.
abstract: A patient is described in whom an afferent pupillary defect was an early sign of a tumour in the pineal region. It is suggested that this was due to involvement of the pupillary afferent fibres between the optic tract and pretectal nucleus contralateral to the affected pupil.
mesh_terms: D000328:Adult; D000344:Afferent Pathways / Q000503:physiopathology; D002551:Cerebral Ventricle Neoplasms / Q000175:diagnosis* / Q000503:physiopathology; D004292:Dominance, Cerebral / Q000502:physiology; D005910:Glioma / Q000175:diagnosis* / Q000503:physiopathology; D006801:Humans; D007498:Iris / Q000294:innervation*; D008297:Male; D010870:Pineal Gland / Q000503:physiopathology; D011680:Pupil / Q000502:physiology*; D012025:Reflex, Pupillary; D013786:Thalamic Diseases / Q000175:diagnosis / Q000503:physiopathology