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鼻咽部低级别甲状腺样乳头状腺癌的临床病理分析 被引量:2

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摘要 目的探讨鼻咽部低级别甲状腺样乳头状腺癌(TL-LGNPPA)的临床病理特征、免疫表型及鉴别诊断。方法对2例TL-LGNPPA患者的临床表现、组织学形态及免疫表型进行回顾性分析,并复习相关文献。结果 1例女性,44岁;1例男性,67岁。2例患者肿物均位于鼻咽顶部,呈外生性息肉状生长。镜下观察,肿瘤均由乳头状结构和管状腺体组成,乳头间质为纤维血管轴心。乳头和管腔被覆立方或柱状上皮,细胞核呈圆形、卵圆形,形态一致,相对温和,细胞质嗜酸性。免疫组化标记显示,2例患者肿瘤细胞均弥漫表达广谱细胞角蛋白、细胞角蛋白(CK)7、CK19、甲状腺转录因子-1和波形蛋白,灶性表达上皮膜抗原和CD117,不表达CK5/6、p63、CK20、甲状腺球蛋白、PAX8、CD15和BRAF V600E,Ki-67阳性指数为1%~2%。EB病毒编码的小RNA原位杂交法检测2例均为阴性。结论 TL-LGNPPA是一种罕见的低度恶性上皮性肿瘤,具有独特的形态学特点和免疫表型,熟悉其临床病理特点有助于诊断及鉴别诊断。
出处 《浙江医学》 CAS 2018年第17期1949-1951,共3页 Zhejiang Medical Journal
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