"Low T1 bone lesions or T1 hypointense bone lesions are radiological terms to categorise bone lesions according to their visually perceived low signal on T1 weighted images. Apart from the usual description of a bone lesion seen on MRI they are used to categorise incidentally found solitary bone lesions in the Bone Reporting and Data System (Bone-RADS) 1."
"Ewing sarcoma"