Secondary osteosarcoma are associated with -
Ans. is 'a' i.e., Paget's disease Causes of secondary osteosarcomao Pagets Diseaseo Fibrous dysplasiao Radiationo Enchondromatosiso Hereditary multiple exostosiso Chronic osteomyelitiso Bone infarction
Paget's disease
Osteogenesis imperfecta
Melhoreostosis
Ankylosing spondylitis
Metabolic Disorders Leading to Osteosclerosis