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SYNOPSIS

Injury to the right lateral forehead was followed by headaches, and chronic ipsilateral ptosis, miosis, and forehead hyperhidrosis. Episodes of headache were accompanied by an increase in ptosis, miosis and forehead hyperhidrosis. The headaches abated within 6 weeks but the ptosis and miosis, due to postganglionic sympathetic insufficiency, were persistent. Spontaneous forehead hyperhidrosis, was also persistent at the time of last follow-up, 15 months later. Autonomic assessment of the oculocephalic sympathetic dysfunction, localization of the lesion and possible explanation of the autonomic findings are discussed.