<prompt> All of the follow ing are diaphyseal tumors except-Ewings sarcomaHistiocytosisFibrosarcomaAneurysmal bone cyst  <response>: Ans. is d i.e., Aneurysmal bone cyst Sites of tumorsEpiphyseal tumorsMetaphyseal legionsDianhvseai lesionso Chondroblastomao Giant cell tumor osteoclastomao Clear cell chondrosarcomao Osteogenic sarcomao Unicameral simple bone cysto Aneuiysmal bone cysto Fibrous cortical defecto Chondrosarcomao Osteochondromao Enchondromao Osteoblastomao Ewring sarcomao Lymphomaso Fibrous dysplasiao Adamantinomao Histiocytosiso Osteoid osteomao Chondromyxoid fibromao Fibrosarcomao Fibrous cortical defecto Non ossifying fibroma 