DOI: 10.3290/j.cjdr.a38772, PubMed ID (PMID): 28808701Pages 169-172, Language: EnglishSue, Mikiko / Oda, Takaaki / Sasaki, Yoshihiko / Kameta, Ayako / Okada, Yasuo / Ogura, IchiroOsteosarcomas are especially rare in the mandible and maxilla, representing 1.6% of all bony malignant tumours. In this article, we described a case of osteosarcoma of the mandible. Computed tomography (CT) image showed a well-circumscribed homogeneous mass, with nonhomogeneous contrast enhancement. T1-weighted magnetic resonance imaging (MR) image showed intermediate signal intensity on, and after administration the lesion showed signal intensity lower than muscle. T2-weighted MR image showed heterogeneous high signal intensity. Bone scintigraphy revealed monostatic involvement of the mandible with a homogenous intense uptake pattern. Ga-67 citrate scintigraphy revealed significantly increased uptake. Histopathological examination confirmed the diagnosis of osteosarcoma.
Keywords: CT, MRI, osteosarcoma, scintigraphy
