Enhanced CT features of different types of uncommon parotid tumors
Wang Fang;Wang Hui;Zhang Yunqing;Zhidan People's Hospital;Yan'an University Affiliated Hospital;
Objective To analyze the enhanced CT features of uncommon parotid tumors to provide reference for clinical diagnosis and treatment. Methods A total of 70 patients with uncommon parotid tumors admitted to our hospital were review to analyze the location, size, shape and density of lesions of different pathological types of tumors on enhanced CT image and the their relation with surrounding structures. Results Among the 70 cases, there were three cases of confirmed hondrosarcoma(mainly cystic lumps with components with peripheral calcification), 12 cases of myocyte epithelioma(mostly on superficial parotid lobe, with calcification visible on a few lesions), 15 cases of vascular tumor(with uniform or non-uniform density and protruding from the protid surface), 25 cases of basal cell tumor(mostly on superficial parotid lobe, obvious cystic change within lesions, and enlarged lymph nodes in the enhance CT image), 8 cases of lymphatic epithelial cyst(high density in CT image and sticky cyst fluid) and 7 cases of protid lipomyoma(clear fat density and lumps, and visible hyperdensity in lesions). Before the operation, one case of basal cell tumor was misdiagnosed as hemangioma, which was not in conformity with pathological findings; myocyte epithelioma as superficial multiform adenoma, which was not in conformity with pathological findings; and hondrosarcoma as neurogenic tumor, which was not in conformity with pathological findings. Conclusion The manifestations of uncommon protid tumors in enhanced CT image are different. Therefore, professional technological learning shall be enhanced to improve the understanding of such manifestations.
【CateGory Index】： R730.44;R739.8