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目的：评估ＣＴ检查对腮腺肿瘤鉴别诊断的价值。方法：回顾性分析了经病理证实的２４例腮腺肿瘤ＣＴ表现，并同病理所见进行对照研究，采用双盲阅片评估ＣＴ对腮腺良、恶性肿瘤的鉴诊价值。结果：９例良性肿瘤，密度均匀，边界清楚者６例，密度不均、部分境界不清３例。１５例恶性肿瘤，１２例密度不均，边界模糊；３例密度较均，境界清楚。２４例肿瘤的ＣＴ图像中均未见面神经显示。双盲阅片结果表明：ＣＴ对７８．９％的腮腺肿块能正确定性（炎症、良或恶性肿瘤），但不能确认其组织学类型。结论：ＣＴ能鉴别大多数的良、恶性肿瘤，但不能确定其组织学类型。
Objective: To evaluate the value of CT in the differential diagnosis of parotid tumors. Methods: CT findings of 24 parotid gland tumors confirmed by pathology were retrospectively analyzed and compared with the pathological findings. The diagnostic value of CT on parotid benign and malignant tumors was evaluated by double blind reading. Results: There were 6 cases of benign tumor with uniform density and clear boundary. The density was not uniform and some of them were not clear in 3 cases. 15 cases of malignant tumors, 12 cases of uneven density, fuzzy boundaries; 3 cases were more dense, clear realm. 24 cases of tumor CT images showed no facial nerve. Double-blind reading results show that: CT of 78.9% of parotid masses can be correctly characterized (inflammation, good or malignant tumor), but can not confirm the histological type. Conclusion: CT can identify most of the benign and malignant tumors, but its histological type can not be determined.