目的：研究CT诊断腮腺肿瘤的价值。方法：21例采用CT扫描与病理对照研究。结果；CT诊断腮腺肿瘤的敏感性为82.6％，特异性66．7％，漏诊率17.4％，误诊率33．3％。CT鉴别腮腺良、恶性肿瘤的敏感性为54.5％，特异性68．2％，漏诊率45．5％，误诊率31．8％。结论：CT诊断腮腺肿瘤敏感性、特异性均较高，有一定的价值，但分辨腮腺肿瘤的良、恶性敏感性较低。 Objective: To study the value of CT in diagnosis of parotid gland tumor. Methods: Twenty-one patients were examined by CT scan and pathology. Results The sensitivity, specificity and accuracy of computed tomography in diagnosing parotid tumors were 82.6%, 66.7%, 17.4%, and 33.3%, respectively. The sensitivity and specificity of CT in distinguishing benign from malignant tumors were 54.5%, 68.2%, 45.5%, and 31.8% respectively. Conclusion: The diagnosis of parotid gland tumor with CT is more sensitive and specific, and it is of certain value. However, the sensitivity of parotid gland tumor is poor.