患儿，女性，８个月。以会阴部包块４月余入院。４月前家长发现患儿会阴部有一约蚕豆大小的包块，生长较快，入院时约网球大小，无破溃出血病史。体检：发育正常，营养状况良好，右侧阴道壁可见一约６ｃｍ×５ｃｍ×４ｃｍ大小菜花样肿物，自阴道口突出，质韧，表面有少许... Children, women, 8 months. Perineal mass in more than 4 months admission. 4 months ago, parents found that children with perineum have a broad bean-like mass, rapid growth, about the size of the tennis admission, no history of ulcerated bleeding. Physical examination: normal development, good nutritional status, visible on the right side of the vaginal wall ca. 6cm × 5cm × 4cm cauliflower-like mass, prominent from the vaginal opening, quality tough, the surface a little ...