[Sterno-costo-clavicular hyperostosis (author's transl)].

A case is described in which bilateral subclavian vein occlusion was caused by fusiform expansion of the clavicle with hyperostosis, ankylosis of the sterno-clavicular joint, widening and thickening of the sternum and ossification of the costal cartilage of the first ribs. Histologically this proved to be due to an hyperostotic spongiosclerosis.