From: Secondary peripheral chondrosarcoma in multiple osteochondromas: a retrospective single-institution case series
Site
N.
%
Pelvis
46
43.81%
Lower limb*
35
33.33%
 Proximal femur
17
14.66%
Upper limb#
6
5.71%
Vertebrae
Scapula
5
4.76%
Rib
3
2.86%
Calcaneus
1
0.95%
Clavicle
Unspecified Site
2
1.90%