the first region of involvement was lumbar spine ( 28.4 % ) , then dorsal spine ( 27.7 % ) , sacrum and pelvis ( 16.3 % ) , femur ( 9.9 % ) , rib and sternum ( 7.8 % ) , humerus ( 5.0 % ) , cervical spine ( 3.5 % ) and skull vault ( 1.4 % ) .
C0024091
lumbar spine
C0037949
spine