Coup de Sabre
Coup de sabre is a localized form of scleroderma manifest as a linear, atrophic lesion on the forehead which may be mistaken for a scar. This lesion may be associated with hemifacial atrophy and epilepsy, and neuroimaging may show hemiatrophy and intracranial calcification. Whether these changes reflect inflammation or a neurocutaneous syndrome is not known.
Duyff RF, Vos J. A "scar" and epilepsy: coup de sabre. Journal ofNeurology, Neurosurgery and Psychiatry 1998; 65: 568