Abstract
This randomized phase III trial is studying cyclophosphamide, prednisone, and immunoglobulin
to see how well they work compared to cyclophosphamide and prednisone alone in treating
patients with abnormal trunk muscle movements associated with neuroblastoma. Drugs used in
chemotherapy, work in different ways to stop tumor cells from dividing so they stop growing
or die. Steroid therapy decreases inflammation. Combining chemotherapy and steroid therapy
with immunoglobulin may be effective in treating abnormal muscle movement associated with
neuroblastoma.

