摘要
目的:研究颌骨骨软骨瘤的CBCT影像学表现,为该病的诊断提供参考依据。方法:对26例颌骨骨软骨瘤的临床及CBCT影像学资料进行分析。结果:颌骨骨软骨瘤发病部位以髁突多见(24例),其余2例分别位于喙突、颧骨。骨软骨瘤CBCT表现为颌骨不规则增生,形态多样,生长方向各异。增生物结构可分为3型:1增生物为类骨质样结构,骨皮质、骨松质分别与颌骨相连(17例);2增生物密度类似骨皮质,无骨小梁结构(6例);3增生物较正常骨质密度低,骨小梁结构疏松紊乱,边缘包绕骨白线(3例)。肿瘤周围骨质可受压移位或吸收,常见关节凹、关节结节骨质硬化。结论:CBCT能准确显示颌骨骨软骨瘤的特征性表现、形态、位置、范围及与周围组织的关系,为术前诊断及外科手术路径的选择提供参考。
Objective：To investigate the radiologic feature of jaw osteochondroma on cone beam CT. Method：Analyze the feature of clinic and CBCT radiographs of 26 patients who were histopathologically diagnosed with osteochondroma in West China Hospital of Stomatology of Sichuan University from 2007 to 2015. Result：The predominant location of maxillofacial ostochondroma is mandibular condyle in where 24 patients were manifested, and the remaining 2 cases were located in mandibular coracoid and zygoma. Three types of osteochondroma were presented on CBCT： type 1 in 17 patients showed an osteophyte resembling normal bone structure, and the cortex and marrow of the lesion were continuous with the underlying bone. While type 2 in 6 patients showed a radiopaque neoplasm with cortex-like radiopacities. Type 3 in 3 patients exhibited a mixed radiodensity neoformation surrounding by thin cortex. The displacement and absorption of surrounding bones can be observed. In addition, the osteosclerosis of glenoid eminence were found in majority of patients. Conclusion：CBCT has an advantage to demonstrate the characteristic feature of osteochondroma and its relationship with surrounding structures,providing a reference for preoperative diagnosis and surgery approach.
出处
《临床口腔医学杂志》
2016年第5期290-293,共4页
Journal of Clinical Stomatology
关键词
骨软骨瘤
颌肿瘤
锥形束CT
Osteochondroma
Jaw neoplasms
Cone beam CT
