源于子宫内膜样囊肿的卵巢未分化/去分化癌1例

Undifferentiated/dedifferentiated carcinoma derive from endometrioid cyst of the ovary:report of a case

卵巢未分化/去分化癌的发病率低,约占卵巢癌的0.5%。本文报道1例源于子宫内膜样囊肿的卵巢未分化/去分化癌病例,呈囊实性。实性区占癌肿70%,表现为片状、巢状未分化癌成分伴广泛“地图样”坏死;囊性区占癌肿30%,被覆无异型子宫内膜样腺体及间质并过渡为低级别子宫内膜样癌,2种癌组织转换突兀、无过渡;其中未分化区域缺乏“Mullerian”免疫表型,而分化区与之相反,呈现特征性阴阳对照表达。本文回顾其临床病理资料并复习相关文献,以提高对该病的认识,避免漏诊、误诊。