[Chronic, sympathetically maintained pain syndrome after mild lesion of the brachial plexus-a case report.].
The present article is a case report on a chronic sympathetically maintained pain syndrome following a mild lesion of the brachial plexus. Apart from slight motor and sensory disturbances, which disappeared within a few months, no autonomic, motor or sensory deficit remained. Spontaneous pain and a remarkable allodynia in the region of the left upper quadrant, always without the left hand developed. The pain syndrome obviously extended beyond the region of the primary affected nerve. In the climax of the pain attacks it became manifest like a mirror reflexion on the opposite side. The diagnostic and therapeutic problems that occurred during these years and the dependency of the pain attacks on exterior influences are evaluated.
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