Isolated Horner's syndrome and syringomyelia
- Department of Neurology, Poole General Hopsital, Longfleet Road, Poole BH15 2JB, Dorset, UK cellis@poole-tr.swest.nhs.uk
How far do you investigate the isolated Horner's syndrome? The sympathetic pathway to the pupil is long originating in the hypothalamus from where the central neuron descends to the intermediolateral column of the upper three dorsal spinal segments. The preganglionic neuron then ascends to the superior cervical ganglion and the postganglionic neuron travels from there via the internal carotid artery to the eye. There is little evidence of decussation and thus Horner's syndrome has long been known as a good lateralising but a poor localising sign.
Individual case reports relate …
