[Bone fluorosis without occupational exposure in chronic renal insufficiency].

Report on a 70-year-old male with bone fluorosis which was ascertained radiologically, by section and fluor analysis in the bone ash. With empty professional anamnesis as cause was found the presence of a chronic renal insufficiency with simultaneously increased fluor content of drinking water. The decreased renal excretion of fluoride might have led to the pathological development in the bones. It is referred to the significance of extra-medical fluor load and the knowledge of the renal function when halogen is therapeutically used.