论文部分内容阅读
目的观察分析腮腺原发性良性多形性腺瘤的CT表现,提高诊断水平。方法分析经手术病理证实的腮腺原发性良性多形性腺瘤的CT影像学特点。结果本组病例病灶均呈类圆性,大小3~5 cm;部位均位于浅叶;境界清楚,边缘规则;平扫呈软组织密度,内部中心区见少许低密度区;增强扫描实性成分呈轻到中度强化,密度尚均匀,与同层肌肉密度相仿,内部低密度区强化不明显。结论腮腺原发性良性多形性腺瘤在CT上的表现容易与其他病变混淆而导致误诊,仔细分析CT征象,可以提高诊断准确性。
Objective To observe and analyze the CT manifestations of parotid primary benign pleomorphic adenoma and to improve the diagnostic value. Methods CT features of parotid primary benign pleomorphic adenomas confirmed by surgery and pathology were analyzed. Results The lesions in this group were all round in shape with the size of 3 ~ 5 cm. The sites were located in the shallow leaves. The boundaries were clear and the edges were regular. The soft tissue density in plain scan and a few low density areas in the inner central area were observed. Light to moderate enhancement, density is still uniform, with the same level of muscle density similar to the internal low-density area is not obvious. Conclusion The primary benign pleomorphic adenoma of parotid gland is easily misdiagnosed as other benign pleomorphic adenomas because of its misdiagnosis on CT. Careful analysis of CT signs can improve the diagnostic accuracy.