Segmental anhidrosis in the spinal dermatomes in Sjögren's syndrome‐associated neuropathy

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Abstract
We describe two women with primary Sjögren's syndrome and sensory neuropathy who had anhidrosis segmentally along dermatomes of the spinal segment, along with sensory loss. Intradermal administration of cholinergic agents elicited no sweat response in the spinal segments with anhidrosis, whereas a normal response was present in segments with obvious sweating. These features suggest segmental involvement of the postganglionic sympathetic ganglion cells.

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