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目的：探讨子宫内膜异位囊肿的超声显像的周期性变化。方法：对３０ 例经手术病理确诊为子宫内膜异位囊肿患者，术前分别在月经前３～５ ｄ，月经第５、７、１０、１４、２２ 天观察囊内超声显像及其大小变化。结果：１４ 例在月经第５ 天，沿内壁出现块状或乳头状强回声区，与内壁有间隙，此特征持续至月经第１０ 天开始稀疏，回声减低，月经第１４ 天明显疏散变小，月经第２２ 天基本消失，回声趋向均匀点状。３ 例此特征持续存在。此类囊肿体积随月经周期变化而不同且有统计学意义。结论：这种随月经周期变化特征可作为该病超声诊断及鉴别诊断依据之一，亦可作为该病活动性进展性指标。
Objective: To investigate the periodic changes of ultrasound imaging of endometriotic cysts. Methods: Thirty patients with endometriosis confirmed by surgery and pathology were enrolled. The intracapsular ultrasound imaging and its size were observed before the menstruation 3 ~ 5 days and 5, 7, 10, 14 and 22 days respectively Variety. Results: On the 5th day of menstruation, 14 cases appeared massive or papillary hyperechoic area along the inner wall with a gap from the inner wall. This characteristic continued to sparse on the 10th day of menstruation, decreased echoes, significantly evacuated on the 14th day of menstruation, Menstrual disappeared on the 22nd day, the echoes tended to be uniform. 3 cases of this feature persist. The volume of such cysts varies with the menstrual cycle and is statistically significant. CONCLUSIONS: This change with the menstrual cycle may serve as a basis for the diagnosis and differential diagnosis of the disease, and may also be used as an active progressive indicator of the disease.