<prompt> Tumour arising from epiphysis isOsteoclastomaOsteochondromaOsteoid osteomaEnchondroma  <response>: Ans: a Osteoclastoma Ref: Maheshwari, rev ed, p. 216Osteoclastoma is located at the epiphysis. Usually seen after epiphyseal fusion, by 20-40 yrsSites: Lower end of femur upper end of tibiaBony lesions with site of originMetaphysisDiaphysisEpiphysisOsteosarcomaOsteomyelitisBrodies abscessEwings sarcomaOsteoid osteomaMultiple myelomaSecondariesLymphomaOsteoclastomaChondroblastoma 