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[Childhood acromelalgia a propos of a case revealing Fabry's disease].

The occurrence of an acrosyndrome (Raynaud's phenomenon, erythermalgia, acrodynia...) in childhood may be the first manifestation of a general disease. Though it can be an early onset Raynaud's disease, it could also be the first sign of a connective tissue disease (juvenile polyarthritis, mixed connectivitis...) or of a overload disorder. We report a case of childhood-onset acromelalgia leading to the discovery of Fabry's disease. This chromosome X-linked hereditary disorder, resulting in the ubiquitous accumulation of neutral sphingolipids, is usually rapidly suspected by the finding of "boxer-short" angiokeratoma. Diagnosis is confirmed by the ophthalmic examination (cornea verticillata), by the pathological examination of a skin sample, and by the measure of alpha-galactosidase A activity. Treatment is usually only symptomatic, but the discovery of the mutations responsible for the disease could open the way to specific therapy.