摘要
目的探讨腮腺肿瘤的多层螺旋CT图像特点。方法对60例腮腺肿瘤的临床资料及CT图像进行分析,并分别测量平扫和双期增强的CT值,判断其强化程度。结果 60例患者中发现良性肿瘤57例,恶性肿瘤3例。腺淋巴瘤发病平均年龄最高,且均为中老年男性。混合瘤以中年女性多见,发病平均年龄各组最低。腺淋巴瘤平扫密度最高。增强特点:腺淋巴瘤表现为早期显著强化及快速流出,多形性腺瘤表现为延迟式强化,基底细胞瘤表现为显著持续强化,内见点状及裂隙状低密度;表皮粘液样癌增强表现缺乏特异性。结论 CT能对腮腺肿瘤进行准确定位,不同病理类型的肿瘤在发病年龄、部位,平扫及增强后的强化程度及方式有一定的特异性,但也存在不同程度的交叉。
Objective To review the CT features of different pathologic types of parotid tumors, in order to improve the diagnostic accuracy of parotid tumors. Methods The CT materials of 60 patients with parotid tumors were collected. The CT values of the parotid tumors were measured before and after contrast medium injection. Both the clinical material and CT features were analysed. Results Among 60 Patients, 57 were benign, 3 were malignant. Pieomorphicadenoma often occurred in mid-aged women, younger than other groups. Adenolymphoma showed highest density with plain CT scan. After contrast medium injection, adenolymph.omas presented fast in and out. Pleomorphicadenoma showed delayed enhancement. Basaleelltumor showed obvious and sustained enhancement, and had spotty low density in the center. Conclusion CT provides precise location of parotid tumors before surgery. Different pathologic types of parotid tumors differ in predilection age, location, plain and enhanced CT scan to a certain extent.
出处
《医学影像学杂志》
2016年第12期2192-2194,2197,共4页
Journal of Medical Imaging
