盆腔巨大囊性包块,来源于卵巢占大多数,由于此类肿瘤多数体积巨大,故定位、定性诊断较困难,尤其囊性包块巨大,压迫肠腔、膀胱,CT平扫无法分清包块及膀胱界限,甚至B超及CT平扫被误认为膀胱是囊肿的一部分或膀胱根本无法显示,吴少平等曾报道1例将卵巢囊腺瘤误认为充盈膀胱。近3年 Pelvic huge cystic mass, derived from the majority of the ovary, as most of these tumors are huge, so the positioning, qualitative diagnosis is more difficult, especially cystic mass, compression of the intestine, bladder, CT scan can not distinguish the mass And bladder boundaries, and even B-scan and CT scan was mistaken for the bladder is part of the cyst or the bladder simply can not be displayed, Wu Shao-ping, etc. have been reported in 1 case of ovarian cystadenoma mistaken for filling the bladder. Nearly 3 years