原发部位的子宫内膜间质肉瘤

定义

起源于子宫体、宫颈、阴道和卵巢的一种恶性、浸润性间质肿瘤。根据其形态特征，可分为低级或未分化（高级别）间质肉瘤。低级别子宫内膜样间质肉瘤的特点是存在椭圆形至纺锤形细胞，类似于子宫内膜间质细胞，没有明显的非典型性和多形性证据。还存在大量小血管。未分化间质肉瘤的特点是临床过程具有侵袭性，存在显著的细胞异型性、多形性和高有丝分裂活性。

A malignant, infiltrating mesenchymal tumour arising from the uterine corpus, cervix, vagina, and the ovary. Based on its morphologic characteristics, it is classified as either a low grade or an undifferentiated (high grade) stromal sarcoma. The low grade endometrioid stromal sarcoma is characterised by the presence of oval to spindle-shape cells that resemble the cells of the endometrial stroma, without evidence of significant atypia and pleomorphism. Numerous small vessels are also present. The undifferentiated stromal sarcoma is characterised by an aggressive clinical course, the presence of significant cellular atypia, pleomorphism, and high mitotic activity.

索引词 可用于检索该条目的同义词与别名

• 原发部位的子宫内膜间质肉瘤
• 子宫的子宫内膜间质肉瘤
• 子宫峡部子宫内膜间质肉瘤