原发咽旁滑膜肉瘤1例

摘要

本文报告1例咽旁滑膜肉瘤,患者男,15岁,以左咽旁无痛性逐渐增生包块1月就诊.专科检查发现左侧咽旁有一大小约8 cm×4 cm×3 cm肿物,蒂部位于左扁桃体上隐窝.影像学检查见左侧口咽不规则肿块,与左舌根后份分界不清,增强扫描明显不均匀强化.免疫组织化学检查:上皮细胞膜抗原(+),细胞角蛋白(CK)19(+),CD7(+),波形蛋白(+),CK10(-),钙黏蛋白(+),B淋巴细胞瘤-2(-),CD2(-),CD10(-),CD138(+),CD99(+),白细胞共同抗原(+),Ki-67(20%+).病理诊断为咽旁滑膜肉瘤.%A case of primary pharynx synovial sarcoma was reported in this paper. A 15-year-old male patient experienced painless pharyngeal swelling that gradually proliferated for 1 month. Special examination showed an 8 cm × 4 cm × 3 cm tumor located in the left pharynx and the supratonsillar crypt. Imaging tests revealed an irregular mass on the left side of the oropharynx and an unclear boundary. Immunohistochemical examination yielded the following results:epithelial membrane antigen (+), cytokeratin (CK)19 (+), CD7(+), vimentin (+), CK10(-), E-cadherin (+), B-cell lymphoma-2 (-), CD2 (-), CD10 (-), CD138 (+), CD99 (+), leukocyte common antigen (+), and Ki-67 (20%+). This condition was pathologically diagnosed as primary pharynx synovial sarcoma.