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《Journal of Practical Radiology》 2005-07
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CT Diagnosis of Parotid Diseases

WEN Zhi, Mayinuer , Alifu ,Nuerlan ,MA Ji-wen ,JIA Zhi-qiang(CT Department,the Affiliated Tumour Hospital of Xinjiang Medical University,Wulumuqi, Xinjiang 830011,China)  
Objective To analyse the CT findings of benign and malignant parotid diseases.Methods CT features of 52 patients with parotid diseases proved pathologically and clinically were studied retrospectively,there were 29 had benign tumors, 13 malignant tumor, 4 tuberculosis and 6 chronic parotitis.Results CT revealed intraparotid or periparotid masses in 48 cases. Up to 82.8%(24/29) of benign tumors were regular and well-defined.76.9%(10/13) of malignant neoplasms were irregular with indistinct margin.Tuberculosis demonstrated ill-defined, heterogeneous nodules or masses associated with nodular calcification and periparotid lymphadenopathy, and both the intraparotid masses and lymphadenopathy had ring-like enhancement.4 cases of diffuse parotitis showed unilateral or bilateral diffuse enlargement of parotid gland with increased attenuation.2 cases of focal parotitis were seen as tumorous lesions with indistinct border. Conclusion CT has very high sensitivity (100%) and important role in detecting parotid diseases and contrast-enhanced CT can improve the accuracy of differential diagnosis.
【CateGory Index】: R816.98
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