[Latent coeliac disease in a 4.5-year-old girl with type 1 diabetes mellitus--case report].

Four and half year-old girl with type I diabetes mellitus and latent coeliac disease was presented. The typical serological screening at type I diabetes mellitus onset was negative. Three years later serological screening was performed again because of recurrent diarrhoea. At the time serum IgA antiendomysial antibody was positive. The intestinal biopsy showed subtotal villous atrophy with intraepithelial lymphocyte infiltration and elongated crypts. It seems that diabetic children should be periodically checked by screening tests for coeliac disease.