Multimodality evoked response testing in sarcoidosis.

Neurosarcoidosis is suspected on clinical grounds. The diagnosis is confirmed radiographically or by spinal fluid examination or biopsy. Evoked response testing in sarcoidosis has been studied by three groups of investigators. Visual, somatosensory, or brainstem auditory evoked potentials were abnormal in some sarcoidosis patients with, and in others without clinical evidence of neurological involvement. Multimodality evoked response testing may be useful in further defining neurosarcoidosis and in detecting subclinical disease.