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Table 1 The image analysis of Erdheim–Chester Disease characteristics on CT images

From: Atypical skeletal involvement in patients with Erdheim–Chester disease: CT imaging findings

Characteristics

Details

Location

Spine

 

Pelvis

 

Ribs

 

Clavicles

 

Sternum

Distribution

Unilateral

 

Bilateral

 

Symmetric

 

Asymmetric

Range

Diffuse

 

Focal

Shape

Nodular

 

Patchy

Number

Solitary

 

Multiple

Density changes

Osteosclerosis

 

Osteolysis

Cortical bone thickening

Absent

 

Present

Bone marrow cavity

Normal

 

Narrowed

Cortical bone–medullary cavity margin

Normal

 

Blurred

Joint destructions

Absent

 

Present

Fractures

Absent

 

Present

Expansive changes

Absent

 

Present