Behcet Syndrome/diagnosis; Emigrants and Immigrants; Administration, Oral; Adolescent; Anti-Inflammatory Agents/administration & dosage; Antibodies, Monoclonal/administration & dosage; Atrophy; Azathioprine/administration & dosage; Behcet Syndrome/drug therapy; Behcet Syndrome/immunology; C-Reactive Protein/analysis; Cyclophosphamide/administration & dosage; Diagnosis, Differential; Drug Therapy, Combination; Female; Humans; Immunosuppressive Agents/administration & dosage; Infliximab; Infusions, Intravenous; Magnetic Resonance Imaging; Methylprednisolone/administration & dosage; Myelitis, Transverse/diagnosis; Myelitis, Transverse/drug therapy; Myelitis, Transverse/immunology; Neurologic Examination; Phenindione/administration & dosage; Phenindione/analogs & derivatives; Prednisolone/administration & dosage; Pyoderma Gangrenosum/drug therapy; Spinal Cord/pathology; Spinal Cord Ischemia/diagnosis; Spinal Cord Ischemia/drug therapy; Spinal Cord Ischemia/immunology; Tumor Necrosis Factor-alpha/antagonists & inhibitors