Longstanding epileptic encephalopathy and linear localized scleroderma: two distinct pathologic processes in an adolescent.

We report a 7-year-old boy who unexpectedly developed a multi-drug resistant epilepsy with negative neuroimaging results, followed by the insidious appearance of linear localized scleroderma involving the right leg. When the boy was 16 and severely affected by epileptic encephalopathy, we have evaluated this case for the first time: his localized scleroderma had reached the right buttock and positive anti-nuclear antibody was the only positive laboratory test. Methotrexate administered for 12 months was ineffective in improving both the organization of his electroencephalographic pattern and seizure control, though seemed to stabilize the progression of linear scleroderma. This report suggests that neurological abnormality and extracranial scleroderma might represent two own distinct processes in a same patient.