Morbus Caffey-Silverman, or infantile cortical hyperostosis is presented as a benign bone disease of child age the etiology of which is unknown so far. Morbus Caffey is characterized by painful swelling of the afflicted part of the body, by an elevated temperature and irritability. In the first part of the article there is general information, in the second part the authors present 2 cases of Caffey-Silverman syndrome incl. hesitations on the differential diagnosis of the above-mentioned disease.

        Key words: cortical hyperostosis, benign disease, differentially diagnostic doubts