颌骨肿瘤性病变的CT诊断

目的 :探讨CT检查对颌骨肿瘤性病变的诊断价值。方法 :搜集 3 6例经手术及病理证实为颌骨肿瘤患者的临床及CT资料 ,回顾性分析各种病变的影像特点。结果 :3 6例中造釉细胞瘤 10例 ,骨化性纤维瘤 10例 ,牙源性囊肿 10例 ,粘液表皮样癌 2例 ,牙龈癌 2例 ,软骨肉瘤 1例 ,鳞癌 1例。良性病变多表现为颌骨膨胀性改变 ,病灶密度不均 ,边缘光整 ,类圆形或分叶状 ,部分与牙根关系密切或内含牙齿 ;恶性者则可见骨质破坏改变及邻近软组织肿胀。结论 :CT能够明确肿瘤范围、骨质改变 (膨胀或破坏 ) ,对疾病的定性及鉴别诊断有一定帮助 ,有助于临床治疗方案的选择。

CT Diagnosis of Neoplastic Lesions of the Jaw Bones

Objective:To study the value of CT examination in the diagnosis of neoplastic lesions of jaw bones. Methods: Clinical data and CT images of 36 cases with neoplastic lesions of jaw bones proved pathologically and surgically were collected and analyzed retrospectively.Results:The lesions included ameloblastoma (n=10),ossifying fibroma (n=5),odontogenic cyst (n=10),mucoepitheliocarcimoma (n=2),gingival carcinoma (n=2),squamous cell carcimoma (n=1) and chondrosarcoma (n=1).The main appearance of benign tumors included bone expansion changes and uneven masses,part of them had a tooth in them.Bone destruction was seen in the malignant tumors with adjacent soft tissue masses.Conclusion:CT examination is useful in evaluation the size of tumor,expansive change and destruction of bone,and helpful in differential diagnosis and planning treatment.