腮腺病变的影像分析

Imaging Analysis in the Parotid Disease

目的进一步提高对腮腺病变影像表现的认识。资料与方法搜集29例经CT和MRI检查的腮腺病变,分析其影像表现。结果腮腺疾病影像表现主要分为3类:(1)局限性肿块23例;(2)弥漫性肿块3例,均为恶性肿瘤;(3)弥漫性肿大但非肿块者3例,2例为腮腺炎,1例为腮腺颌面海绵状血管瘤。腮腺局部单发肿块中,良性肿瘤15例,仅1例边缘不清,而4例恶性肿瘤中的3例肿块边缘不清,两者有显著性差异(P=0.01)。腮腺混合瘤多较大,平均直径4.3cm,而腺样淋巴瘤平均直径2.3cm,两者有显著性差异(t=2.737,P=0.02)。结论根据影像学表现,结合临床,多数腮腺病变可做出正确诊断。

Objective To further improve the recognition of image manifestation in the parotid disease. Materials and Methods 29 cases of parotid disease were selected and their CT or （and） MRI findings were analyzed in details. Results The image manifestation of parotid disease could be divided into three types ： （ 1 ） localized mass （ n = 23 ） ; （2） diffuse mass （ n = 3 ）, all of them were malignant tumor; （3）diffuse swell without mass （ n = 3）, include 2 cases of parotitis and 1 case of angiocavernoma of parotid and occlusal surface. Among the localized mass, 15 were benign tumor in which only 1 lesion was ill defined, while 4 were malignant tumor in which 3 lesions were ill defined, there was significant difference between them （ P = 0.01 ）. As for the size of mass, relatively, mixed tumor of parotid gland was larger than that of Warthin＇ s tumor. The average diameter of mixed tumor of parotid gland was 4.3cm while the diameter of Warthin＇ s tumor was 2.3cm, deviation between them was significant （ t = 2. 737, P = 0.02）. Conclusion According to the image findings combined with clinical manifestation, most parotid disease can be diagnosed correctly.