@article{oai:asahi-u.repo.nii.ac.jp:00003592, author = {松岡, 正登 and MATSUOKA, MASATO and WAKISAKA, TAKASHI and IIDA, YUKIHIRO and SHIMIZU, ICHIROU and YOSHIDA, HIROYASU and KATSUMATA, AKITOSHI}, issue = {2012-05-20}, journal = {2012-05-20}, month = {2012-05-20, 2016-02-06}, note = {扁平上皮癌(SCC)は、口腔・顎顔面領域に生ずる悪性上皮性腫瘍の大部分を占める。我々は、骨肉腫特有のX線所見とされる「旭日像」を示した下顎のSCCを経験したので報告する。 患者は、46歳の男性。パノラマX線撮影、口内法、コンピュータ断層撮影(CT)と磁気共鳴画像(MRI)で画像診断を行った。「旭日像」は、右側下顎臼歯部の頬側皮質骨に、咬合法とCTにて観察された。MRIでは、この骨膜下骨新性が描出されなかった。画像所見による鑑別診断は、骨膜性骨肉腫あるいは類似した悪性造骨性間葉性腫瘍であったが、病理組織診断はSCCであった。 Squamous cell carcinoma (SCC) is a common malignant tumor in the oral and maxillofacial regions. The aim of the present report is to describe the features of a case of mandible SCC which reveals radiographic "sun-ray appearance." The patient was a 46-year-old male. A series of imaging examinations including panoramic and intra-oral radiographs, computed tomography (CT), and magnetic resonance imaging (MRI) were performed. The "sun-ray appearance" was seen in the buccal cortical bone of the right mandibular molar region and in occlusal intra-oral radiograph and CT images. It was difficult for MRI to depict this periosteal reaction. Although the differential diagnoses based on image findings were periosteal osteosarcoma and similar malignant osteoblastic mesenchymal neoplasms, the histopathological diagnosis was SCC.}, pages = {2012-05-20--2012-05-20}, title = {Radiographic "Sun-ray Appearance" in a Case of Mandible Squamous Cell Carcinoma}, volume = {2012-05-20}, year = {} }