Fig. 4From: Atypical skeletal involvement in patients with Erdheim–Chester disease: CT imaging findingsChest CT images in a 45-year-old man with clavicles and ribs involved. A Axial chest CT image shows heterogeneous diffuse osteosclerosis filling both clavicles. B Axial chest CT image reveals a lytic lesion with a sclerotic margin and expansive change in the seventh right posterior ribBack to article page