Lack of sympathetic involvement in dermatitis confined to the median nerve territory. A case report.

Both decreased and increased sympathetic nerve activity has been suggested as a possible underlying mechanism in inflammatory skin lesions. Modulation of sympathetic function has been proposed in the treatment of dermatitis. This case report describes the investigation strategy and normal findings in a case of dermatitis strictly confined to the median nerve territory, illustrating the need for specific tests of sympathetic function when pharmacological as well as physical sympatho-modulatory therapies are considered.