In the first biopsy, the tumor consisted of three kinds of distinct cell type: mucin-producing cell, intermediate cells and epidermoid cells and lots of cystic structures containing mucin.

• 第一次活检标本镜下见淋巴结包膜完整，结内肿瘤组织主要由3种细胞构成：黏液细胞、中间型细胞及表皮样细胞，并可见较多含黏液的囊腔结构。