[Brazilian pemphigus in a child in French Guyana. Discussion on the clinical polymorphism and epidemiology of the disease].

The observation in French Guyana of pemphigus foliaceus having long mimicked eczema or psoriasis and turning 5 year later as an exudative erythroderma, points out the clinical polymorphism of the disease. Several clinical features are analysed that might support the hypothesis of autonomy of the Brazilian type: such as for example joint involvement. But the main point concerns epidemiology since this disease seems to spread out from the classical endemic Brazilian provinces to northern countries as socio-economical conditions improve in the south.