Gnathic osteosarcomas: Review of literature and report of two cases in maxilla

Osteosarcoma: A case report and evaluation

Osteosarcoma (OS) comprises 2.1% of all malignant oral and maxillofacial tumors. OS arising from the jaw OS differs from OS of the long bones in its biological behavior, presenting a lower incidence of metastasis and a better prognosis. The morphologic and behavioral heterogeneity observed in OS and the perplexity of the varied histological features mimicking other primary and metastatic bone tumors has emphasized the need of advanced molecular techniques in its diagnosis. Hereby, we present a case of OS which was diagnosed by immunohistochemical analysis, aiding in establishing its histogenetic origin.

Malignant Lesions in the Dentomaxillofacial Complex

Malignancies in the maxillofacial region are rare but comprise a broad spectrum of lesions. Given the potential for malignancies to mimic dental/sinus/temporomandibular joint pathology or remain asymptomatic, the judicious radiologist will be familiar with the initial and unique malignant changes affecting the dentition, periodontium, and supporting osseous structures on conventional film, dental, and sinus imaging. This article is meant to serve as a complement to the many excellent texts dedicated to advanced imaging techniques for the staging of known malignancies. The lesions discussed are a representative sample of malignancies involving hard tissues of the maxillofacial complex but are far from complete.

Pathological and clinical features of primary osseous tumours of the jaw

Primary bone tumors of the jaw are rare. The neoplastic cells in these tumors are the osteoblasts and osteoclasts. The gnathic bone tumors have also been referred to as borderline. The clinicopathologic approach towards these bony lesions have been reviewed.