title: Gnathic osteosarcomas, experience of four institutions from Turkey.
abstract: Osteosarcoma is the most frequent primary gnathic sarcoma. Neither the etiology nor the variables effecting the prognosis are fully known due mostly to the rarity of gnathic osteosarcomas. To date a considerable number of clinicopathologic features have been suggested in the evaluation of gnathic osteosarcomas. Still there is a need to experience on several aspects of management. The aim of this study is to report a series of 33 cases of osteosarcoma involving either mandible or maxilla. The clinical, radiological and histopathological features of our cases have usually been non-specific and the most frequent provisional diagnosis were "benign fibroosseous lesion, abnormal mass, giant cell granuloma and benign bone tumor". This non-specific presentation of osteosarcomas of the jaws is compatible with those reported previously. A combined clinical, radiological and pathological study is essential in arriving at the correct diagnosis.
authors.affiliation: Department of Pathology, İzmit Seka State Hospital İzmit, Turkey.
authors.forename: Fetin R
authors.initials: FR
authors.lastname: Yildiz
authors.affiliation: Department of Pathology, Atatürk Education and Research Hospital İzmir, Turkey.
authors.forename: Arzu
authors.initials: A
authors.lastname: Avci
authors.affiliation: Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Eskişehir Osmangazi University Eskişehir, Turkey.
authors.forename: Omür
authors.initials: O
authors.lastname: Dereci
authors.affiliation: Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Dicle University Diyarbakir, Turkey.
authors.forename: Behcet
authors.initials: B
authors.lastname: Erol
authors.affiliation: Gören Pathology Laboratory Ankara, Turkey.
authors.forename: Bulent
authors.initials: B
authors.lastname: Celasun
authors.affiliation: Department of Pathology, Gülhane Military Medical Academy Ankara, Turkey.
authors.forename: Omer
authors.initials: O
authors.lastname: Gunhan
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008339:Mandibular Neoplasms / Q000473:pathology*; D008441:Maxillary Neoplasms / Q000473:pathology*; D008875:Middle Aged; D012516:Osteosarcoma / Q000473:pathology*; D014421:Turkey; D055815:Young Adult
keywords: Jaw bone osteosarcoma; gnathic; oral sarcoma; osteosarcoma