刘××,男性,11岁,1986—2—15,初诊。其父陈述,四个月以前突然发现左下肢腘窝部位高度肿胀,皮色如常,不能下蹲,大便时困难,便急忙前去医院外科检查,确诊为小儿腘窝囊性肿胀,住院经消炎,局部手术抽液而愈出院。三个月后复发,伤势如初,入某医院外科病房,医师用同样治法而愈出院。不到 Liu × ×, male, 11 years old, 1986-2-15, newly diagnosed. His father stated that four months ago, he suddenly found a high degree of swelling in the popliteal fossa of the left lower extremity. His skin color was normal and he could not squat. When stools were difficult, he went to the hospital for surgical examination, diagnosed as infantile popliteal cystic swelling, Partial surgical drainage and more discharged. Recurrence three months later, the injury as ever, into a hospital surgical ward, the same doctor and the more treatment and discharge. Less than