CYSTIC ANGIOMATOSIS OF BONE - MR FINDINGS

Cystic angiomatosis of bone is a rare disorder characterized by widesp read lytic bone lesions with or without associated soft tissue or visc eral lymphangiomatosis [1-5]. The disorder is often initially incorrec tly diagnosed as Langerhans cell histiocytosis [1, 21. Unfortunately, biopsy of long bone lesions will often yield only fluid, thereby makin g a histologic diagnosis difficult. This report describes the MR findi ngs in a patient with cystic angiomatosis of bone. We believe that the MR findings are highly suggestive of the correct diagnosis and that M R should eliminate the need for excisional biopsy in future cases.