In a middle – aged man the radiograph shows cotton-wool appearance and blood investigation reveal an elevated alkaline phosphatase levels. The tentative diagnosis is____________?

In a middle – aged man the radiograph shows cotton-wool appearance and blood investigation reveal an elevated alkaline phosphatase levels. The tentative diagnosis is____________?

A. Paget’s disease
B. Cherubism
C. Fibrous dysplasia
D. Osteogenesis imperfecta

Which of the following diseases of the bone characteristically exhibits (in contrast to the other three conditions) a single lesion in a single bone ?

Which of the following diseases of the bone characteristically exhibits (in contrast to the other three conditions) a single lesion in a single bone ?

A. Central giant cell granuloma
B. Osteopetrosis
C. Paget’s disease of the bone
D. Polyostotic fibrous dysplasia