Case Report
Copyright ©The Author(s) 2023.
World J Clin Cases. Feb 6, 2023; 11(4): 931-937
Published online Feb 6, 2023. doi: 10.12998/wjcc.v11.i4.931
Table 1 Clinical and pathological data of this case of benign lymphoepithelial cyst of the parotid gland

Finding
Age, sex44 years, male
Family historyNone
Personal historyNone
Chief complaintLeft neck painless mass present for 1 year
Physical examinationA quail egg-shaped mass on the left parotid gland, about 2.0 cm × 2.0 cm in size, tough, without tenderness, easily moveable, no local redness, swelling, heat or pain, and no abnormalities in the contralateral parotid gland
Laboratory examinationsHIV tests, including antibody and nucleic acid tests and CD4+ T cell examination, were negative
Ultrasound of the neckA 2.2 cm × 2.2 cm hypoechoic mass in the left parotid gland, with a clear boundary, coarse calcification foci, and no blood flow signal (Figure 1)
Neck CTA round cystic lesion in the left parotid gland, with a maximum cross-sectional area of 2.3 cm × 2.2 cm, uneven density, small patches with slightly high-density shadows, and clear boundaries (Figure 2A). On enhanced scanning, the cyst wall was slightly enhanced in the arterial phase, but no obvious enhancement was observed in the cyst (Figure 2B). The enhancement degree in the venous phase was similar to that in the arterial phase (Figure 2C)
PathologyThe cyst wall was laminated squamous epithelium without epithelial nail process and the surface layer was mostly incomplete keratosis (Figure 3A); The epithelium was surrounded by a large number of lymphoid stromata with lymphoid follicular formation and a center of occurrence (Figure 3B)
Final diagnosisNon-HIV-infected BLEC of parotid gland
TreatmentSurgical treatment (specific surgical method was termed left parotid gland tumor + partial superficial lobectomy + facial nerve exploration and protection + fascia flap plasty)
Follow-upNo recurrence of symptoms in 2-year clinical follow-up