Malignant transformation arising in benign lymphoepithelial cysts is a complex and rare occurrence, and related research is limited. This study presents a case of the malignant degeneration of lymphoepithelial cyst in parapharyngeal space. Clinicopathological features and differential diagnosis are discussed with literature review to provide reference for clinical diagnosis and treatment management.
良性淋巴上皮囊肿恶变复杂并且罕见，目前研究尚不明晰。本文报道1例咽旁淋巴上皮囊肿的癌变，并结合文献探讨其临床病理特征以及鉴别诊断，以期为临床诊断和治疗提供参考。.
Keywords: diagnosis criteria; malignant degeneration of lymphoepithelial cyst; primary branchiogenic carcinoma.