[Diffuse cystic angiomatosis of bone. A report on one case followed-up over five years (author's transl)].

The authors report a case of diffuse cystic angiomatosis of bone. The follow-up over five years showed a dramatic worsening which has seldom been observed. The roentgenographic aspect of this rare disease seems always similar, but non specific. The pathologic diagnosis is difficult. The bony involvement is due to a widespread vascular dysplasia, and the final diagnosis relies upon the association with other arteriovenous or lymphatic disorders, or with an abnormal lymphogram.