[Hyperostosis of the iliac crest. Anatomo-radiologic features]

Anatomical and radiological features of two cases with hyperostosis of the iliac crest are related. They help to illustrate a brief discussion of the general prcal factors as well as general medical conditions (especially diabetes mellitus, for which careful clinical investigations should be performed when hyperostosis is discovered radiologically); 2) histological structure; 3) differentiation from osteophytes of osteoarthrosis.