摘要
目的探讨骶尾部皮肤纤毛囊肿(cutaneous ciliated cyst,CCC)的临床病理学特征、诊断、鉴别诊断及预后。方法回顾性分析1例骶尾部CCC的临床病理学、组织学发生及免疫表型特征并复习相关文献。结果患者女童,11岁,发现骶尾部臀裂处赘生物、盆腔MRI尾骨后软组织内边界清楚的囊肿。镜下见真皮层及皮下组织内囊肿形成,与表皮不相连,囊腔内上皮细胞呈乳头状生长,可见鳞状上皮化生,衬覆上皮类似输卵管上皮,由假复层纤毛柱状上皮及分泌细胞组成,未见胞质内分泌物及顶质分泌,未见肌上皮细胞。免疫表型:上皮细胞表达ER、PAX-8,不表达GCDFP-15、TTF-1。结论骶尾部CCC属罕见的良性囊肿,该例起源于异位的Müllerian上皮,确诊主要依靠病理学形态及免疫表型,手术切除后不复发。
引文
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