Imaging and clinical features of nasopharyngeal adenoid cystic carcinoma

VernacularTitle:鼻咽腺样囊性癌临床影像学特点
Author: Jie YIN ¹ ; Li-Zhi LIU ; Mo-Fa GU
Author Information

1. 400021,重庆市中医院放射科MRI室
Keywords: Nasopharyngeal neoplasms; Carcinoma,adenoid cystic; Magnetic resonance imaging
From: Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2013;48(11):930-933
CountryChina
Language:Chinese
Abstract: Objective To analyze the spreading patterns nasopharyngeal carcinoma and nasopharyngeal adenoid cystic carcinoma.Methods Eighteen pathologically confirmed consecutive cases of adenoid cystic carcinomas (ACC)and 182 cases of untreated nasopharyngeal carcinomas (NPC) were reviewed.Results Compared with NPC,ACC had higher rates of T4 disease (14.3％ vs 38.9％,x2 =7.197,P =0.007) and paralyzed cranial nerve(6.0％ vs 38.9％,x2 =37.936,P ＜ 0.001).There was no significant difference in skull base invasion rates between 2 groups (53.3％ vs 66.7％,x2 =1.181,P =0.277).ACC had higher rates of MRI-detected cranial nerve canal invasion (32.4％ vs 55.6％,x2 =3.881,P =0.049) and cavernous sinus invasion (13.7％ vs 33.3％,x2 =7.710,P =0.028) than NPC.Lymph node metastasis occurred in 64.8％ of ACC,and 11.1％ of NPC (x2 =19.699,P＜ 0.001).Conclusion ACC has a higher rate of cranial nerve invasion and NPC has a higher rate of lymphatic metastasis.