MRI features of lymphoepithelioma-like carcinoma of the parotid gland
Abstract：Objective To investigate the MRI features of lymphoepithelioma-like carcinoma ( LELC) of the parotid gland in order to improve its recognition .Methods The MRI features of 8 cases with LELC of parotid gland proved by pathology were analyzed .Results All cases were solid masses on the left side of parotid gland , single in 3 cases, multiple in 5 cases.Four cases were situated in superficial lobe and deep lobe of the parotid gland , and 3 ca-ses were situated in superficial lobe , and 1 case was situated between superficial lobe and deep lobe .T1-weighted im-aging showed 4 cases with isointense or slight hyperintense signals , 4 cases with isointense; T2-weighted imaging demonstrated hyperintense in 6 cases, slight hyperintense in 2 cases.All lesions showed obvious enhancement in the early phase of MRI .There were 4 cases with complete or incomplete capsule , 2 cases with the incomplete partition , 2 cases with complete capsule .The capsules demonstrated hypointense signal on T 1-weighted imaging and isointense signal on T2-weighted imaging , which demonstrated delayed enhancement .In 8 cases MRI displayed almost clear borders in 2 cases, clear borders in 3 cases, unclear borders in 2 cases.MRI displayed the subcutaneous fat and skin were involved in 6 cases, and not involved in 2 cases.Regional lymph node metastases were found in 6 cases, were not found in 2 cases.Conclusion LELC of parotid gland exhibits some imaging features on MRI , which can be the clue for the diagnosis .
Keywords：Lymphoepithelioma-like carcinoma(LELC)Parotid glandTomographyX-ray computedmagnetic resonance imaging
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 615-618 )