A 10-years-old child presents with anemia and recurrent fractures. The X-ray shows diffuse hyper density of bone The diagnosis is most likely to be______________?

Correct answer: B. Osteopetrosis

A. Osteogenesis imperfecta
B. Osteopetrosis
C. Osteochondroma
D. Hyperparathyroidism

Explanation

Osteopetrosis causes defective osteoclast-mediated resorption, producing diffusely radiopaque bones that are paradoxically brittle and fracture-prone; marrow failure may cause anaemia. Osteogenesis imperfecta causes fractures but does not typically produce diffuse bony hyperdensity.

Submitted by a TestUstad contributor and published by the TestUstad editorial teamLast updated 18 September 2026

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