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There are two main morphologically different findings:
- hypodense, irregular sclerotic lined lesions in sacral bone, both iliac bones and the left femur
- multiple GGO lesions in the shaft/distal metaphysis of the left femur
In addition, there are multiple sharply demarcated cystoid lesions of variable size without significant enhancement in muscles in the following locations:
- anterior and lateral muscle group left thigh (the largest single 77x65mm in the axial plane)
- m. iliopsoas sin.
- gluteal area + m. piriformis dx.
All these findings are consistent with intramuscular myxoid lesions and fibrous dysplasia.