Secondary osteosarcoma are associated with
Paget's disease
Osteogenesis imperfecta
Melhoreostosis
Ankylosing spondilitis
Answer- A. Paget's diseaseCauses of secondary osteosarcomaPagets DiseaseFibrous dysplasiaEnchondromatosisHereditary multiple exostosisRadiationChronicosteomyelitisBone infarction