History : This 3Y 5M/O female was relative well before until 2+ month ago. Refuse walking was noted and leg pain (migrating from L't to R't knee) History : The 4+M/O girl was a case of diastematomyelia noted since birth without ans dysfunction noted at present. This time, she was admitted due to rapid enlargement of paraspinal mass in recent 5 days. History : The 13 d/o male infant had gradually decreased appetite since 5 days ago and poor activity was noted. Bicycling movement was noted. History : This 4+ y/o boy was suffered from abdominal distension for 2 months with recent URI symptom.