Albers schonberg disease is -: (A) Osteopetrosis, (B) Osteoporosis, (C) Osteochondritis, (D) Osteomalacia
Answer is A. Osteopetrosis is known as Marble bone disease or Alber&;s Schonberg disease. In this condition bone is hard as marble or as brittle as chalks. There is continued new bone deposition on unresorbed calcified cailage and there is failure of remodelling. Reference- Maheshwari- 5th edn- pg no 317