CT对腮腺病变的诊断价值

目的:评价CT对腮腺良恶性病变的诊断价值。方法:回顾性分析经手术病理证实的47例腮腺病变的CT表现。良性36例,恶性11例。CT平扫46例,增强扫描38例。结果:良性肿瘤无侵袭性,边缘清楚,密度均匀或不均匀,有钙化、囊变、坏死;炎性肿块者,灶周可有磨玻璃影,呈晕征;恶性肿瘤具有不同程度的侵袭性,多呈分叶状,不规则或浸润性生长,边缘不清。CT对腮腺病变定位准确率100% ,而对良恶性定性诊断符合率分别为恶性组72.7% ,良性组80.6% 。结论:CT对腮腺病变定位、定性诊断,特别是区别良恶性病变方面具有较高的价值

The Parotid Diseases:CT Diagnosis

Objective:To evaluate the CT diagnostic value of benign and malignant lesions of the parotid glands.Methods:The CT findings of 47 cases of parotid diseases proved by operation and pathology were retrospectively analysed.Precontrast(47) and postcontrast(38) scans were performed.Results:The final diagnosis was:benign tumors(26),benign lesions(10)and malignant tumors(11).All the 26 benign tumors were noninvasive,defined margin,homogenousor or inhomogenous in density.Some benign tumors had calcification,cystic degeneration and necrosis.Tuberculuos granuloma had a halo sign around the mass.Most of the malignant tumors were variously invasive,lobulated,irregular,inflitrative and poor margin.The localized diagnostic rate of the lesions was 100%,the qualified rate of benign and malignant lesions was,80.6% and 72.7% respectively.Conclusion:The CT scan has significant value in localized and qualified diagnosis especially in differentiating diagnosis of benign and malignant tumors of parotid gland.