[Pellagra--a forgotten disease].

In the civilized world the traditional causes of pellagra such as hunger, malnutrition are disappeared, but the disease has not disappeared after all. In the well developed countries the current etiologic causes are the following: alcoholism, psychiatric disorders, diseases causing cachexy, malabsorption and some drugs. In the case reported by the authors the malnutrition, accompanying the chronic alcoholism was the cause of the diarrhoea, dementia and dermatitis. The correct diagnosis was established after four years of repeated psychiatrical and medical treatment.