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鼻咽黏膜黑色素性嗜酸细胞化生1例并文献复习

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摘要 目的探讨鼻咽黏膜黑色素性嗜酸细胞化生(melanotic oncocytic metaplasia of nasopharynx,MOMN)的临床病理特征。方法对1例MOMN进行HE及免疫组化EnVision两步法染色,并复习相关文献。结果患者男性,54岁,临床表现为耳鸣、听力下降等症状。行喉镜检查在咽鼓管开口处黏膜见一直径约0.3 cm黑色结节,表面光滑,边界清楚。镜下见鼻咽黏膜内大小相对一致的嗜酸性腺体,与周围组织界限清楚,缺乏包膜,部分腺体扩张,腺体由双层细胞排列构成;细胞呈柱状,胞质丰富嗜酸性,胞质内见黑色颗粒样物沉积,细胞核圆形,大小一致,染色质细腻,个别细胞见小核仁,未见核分裂象。免疫表型:Melan-A、S-100均阳性,HBM-45阴性。患者行喉镜下肿物切除,耳鸣消失,听力得到恢复,未见复发。结论MOMN是一种极罕见的良性病变,均发生于亚洲人,临床医师或缺乏经验的病理医师易误诊为其它病变,手术完整切除即可治愈。
作者 张韦 熊中堂
出处 《临床与实验病理学杂志》 CAS CSCD 北大核心 2019年第10期1238-1239,1242,共3页 Chinese Journal of Clinical and Experimental Pathology
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