<prompt> Mosaic pattern of lamellar bone histology is found inOsteopetrosisOsteoid OsteoidOsteitis deformansOsteomalacia  <response>: Refer Robbins page no 1285 Paget Disease Osteitis Deformans Paget disease is a disorder of increased, but disordered and structurally unsound, bone mass. This unique skeletal disease can be divided into three sequential phases: 1 an initial osteolytic stage, 2 a mixed osteoclastic-osteoblastic stage, which ends with a predominance of osteoblastic activity and evolves ultimately into 3 a final burned-out quiescent osteosclerotic stage 