[Hydrotelluric fluorotic intoxication in North Yemen. First results (author's transl)]

The X Ray Department of the French medical mission of Taez receives patients coming from the whole Arab Yemen Republic (country situated in the south of the arab peninsula). Radiology has been a mean of detection and a mean of research of an important centre of osteofluorosis, a disease which had not been studied in this country until then. 47 cases have been collected throughout one year. The hydrotelluric origin of the intoxication has been proved by dosages of the spring waters used for drinking. The main usual clinical and radiological features of the disease are found in that population. The radiological classification proposed by ROHOLM has few clinical correlative interests, but seems available for epidemiological investigation. A first map of the North Yemen for chronic fluorisis has been drawn.