病例 男,10岁,右足背包块5个月,始发现时为0.5cm×0.5cm×0.5cm大小,局部无痛、无红热、行走无不适,且逐渐增大。曾在外院摄X线示跖骨骨质增生,穿刺病理检查为“粘液性液体及死骨成份”,按“结核”治疗无效。现包块增大到3.0cm×4.0cm×1.5cm。行包块穿刺为血性液。病理报告同外院诊断一致。追问病史,曾在婴儿4个月时,因腰骶部脊膜膨出行脊膜修补术,发育过程中未见特殊,现身高为132cm,,近两年经常因精神紧张、活动剧烈或受惊时大小便失禁。双下肢内侧反复起红疹以“神经性皮炎”治疗能缓解,双足跟肿胀,诊断为“双跟骨骨骺炎”。查体:骶尾部12cm×9cm包块、质软、无明显边界,基底固定,表面有横切口疤痕长11cm,按压或牵拉 Case male, 10 years old, right foot mass 5 months, first discovered when the size of 0.5cm × 0.5cm × 0.5cm, local painless, no red hot, walking without discomfort, and gradually increased. X-ray showed a metatarsal bone hyperplasia, puncture pathological examination for the “mucus and sequestrum components,” according to “tuberculosis” treatment ineffective. Block is now increased to 3.0cm × 4.0cm × 1.5cm. Line mass puncture bloody fluid. Pathological diagnosis consistent with the hospital. Asked history, once in infants 4 months, due to the lumbosacral meningocele line meningocele repair, no special development process, the present height of 132cm ,, the past two years often due to mental stress, severe or shock activity When incontinence. Repeated rash on both sides of the lower extremities to “neurodermatitis” treatment can ease, feet and swelling, the diagnosis of “double calcaneal epiphysis inflammation.” Physical examination: sacrococcygeal 12cm × 9cm mass, soft, no obvious border, the base is fixed, the surface of the incision scar length 11cm, press or pull