Imaging Features of Lymphoepithelial Cyst of the Parotid Gland
Author：QIU Li-cheng, SHI qiao
affiliation：Department of Radiology, Peking University Shenzhen Hospital, Shenzhen 518036, Guangdong Province, China
PDFAbstract
Objective To study the CT and MRI image features of lymphoepithelial cyst (LEC) of the parotid gland. Methods Five cases of LEC were confirmed by surgery and pathology. The findings in the clinical ,pathology, CT and MRI were retrospectively analyzed and the related reference were review. Results CT scan shows that LEC appeared mainly as a round lesion with low or high density, smooth edge, clear boundary and visible low density cystic wall, contrast enhanced CT show moderate enhancement of the cystic wall, while the cystic center without enhancement. MRI mainly appeared as a cystic mass with long T1 and long T2 signal with low signal cystic wall, and short T1 signal maybe seen in part of the lesions. Conclusion LEC of parotid gland has some characteristic features, but image only is not sufficient for a definite diagnosis, which still relies on biopsy.
【Keyword】MRI; CT; Lymphoepithelial Cyst; LEC; Parotid Gland
【Chart number】R654.7
【Document Identification Number】A
【DOI】10.3969/j.issn.1009-3257.2017.04.008
Journal of Rare Diseases
th24Volume， th 4 Issue
2019Year11Month
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