患儿,女,7岁,因“腹部膨隆3月”入院。3月前患者家属发现患者腹部长大,无畏寒、发热、恶心、呕吐、腹痛、腹胀、腹泻及阴道流血等。10d前于我院妇科门诊就诊,彩超发现盆腹部巨大囊性包块,伴肿瘤标记物升高,入院。患儿既往体健,无肝炎、结核史,无外伤手术史。查体:一般情况可,心肺(-),腹部明显膨隆,呈蛙腹,未见胃肠型及蠕动波,盆腹腔内可扪及一大小约30cm×30cm的囊性包块。妇科查 Children, female, 7 years old, due to “abdominal bulging March ” admission. 3 months ago, the families of patients found that patients with abdominal growth, no chills, fever, nausea, vomiting, abdominal pain, bloating, diarrhea and vaginal bleeding. 10d ago in our hospital gynecology clinic, color Doppler ultrasound found a huge cystic mass abdominal mass, with tumor markers increased admission. Children with previous physical health, no hepatitis, tuberculosis history, no history of traumatic surgery. Physical examination: the general situation can be, cardiopulmonary (-), abdomen was obviously bulging, frog belly, no gastrointestinal type and peristaltic waves, pelvic peritoneal palpable and a size of about 30cm × 30cm cystic mass. Gynecological investigation