先天性卵巢囊肿极少见,确切病因尚不清楚,一般认为病因与激素刺激有关。近来发现先天性卵巢囊肿可同时伴有胎儿甲状腺功能低下。已有多次报道产前超声诊断胎儿卵巢囊肿,其诊断标准为:囊性结构,形状规则,一般位于胎儿腹部的一侧,胃肠道和泌尿道完整,胎儿女性。产前胎儿卵巢囊肿的诊断常 Congenital ovarian cysts are rare, the exact cause is not clear, the general idea that the cause and hormone-related. Recently found that congenital ovarian cysts can be accompanied by fetal hypothyroidism. There have been many reports of prenatal ultrasound in the diagnosis of fetal ovarian cysts. The diagnostic criteria are: Cystic structure, regular shape, generally located on the side of the fetus abdomen, gastrointestinal and urinary tract intact, fetal women. Prenatal diagnosis of fetal ovarian cysts often