Pre-cancerous lesion of bone-
Paget disease
Chronic osteomyelitis
Benign giant cell tumor
Ail of above
Ans. is 'd' i.e., All of above Pre-cancerous lesion of boneMultiple exostosesOllier's diseaseBenign giant cell tumorOsteoblastomaChondroblastomaChronic osteomyelitisPaget's disease
Malignancies