TY - BOOK AU - Mohammed Abdelfatah Essayed Zein AU - Ahmed Mohamed Kamel , AU - Alaa Mohamed Elhaddad , AU - Dalia Mohamed Ibrahim , TI - Primary malignant bone tumors nasser institute hospital experience / PY - 2013/// CY - Cairo : PB - Mohammed Abdelfatah Essayed Zein , KW - Primary malignant bone tumors KW - Prognostic factors KW - Treatment outcome N1 - Thesis (M.Sc.) - Cairo University - National Cancer Institute - Department of Pediatric Oncology; Issued also as CD N2 - Bone tumors may be classified as primary which originate in the bone and secondary tumors which originate elsewhere . Primary tumors are more uncommon compared to secondary or metastatic tumors . Primary tumors of bone can be divided into benign tumors and cancers . This is a retropective study of 147 patients with pathology proven primary bone tumors who presented to pediatric oncology department department at Nasser Institute hospital. Cairo Egypt during the period from January 2000 till the end of May 2011 UR - http://172.23.153.220/th.pdf ER -