Intensive chemotherapy as primary treatment for rhabdomyosarcoma of the pelvis.

Twenty-six cases of childhood rhabdomyosarcoma involving the pelvis were treated at Childrens Hospital of Los Angeles between 1950 and 1972. The median survival of 17 patients treated up to 1970 was 6 months. Of a group of 9 patients treated with intensive chemotherapy (ICG) prior to surgery and/or x-ray therapy, 5 are surviving from 12 to 60 months and have a relative survival rate of 4.5 times that of the mixed therapy group (MTG) (p = 0.01). Deaths have occurred only in patients with Stage IV disease. The use of preoperative chemotherapy with or without x-ray therapy followed by local surgical excision when necessary can be as effective in prolonging the survival of children with pelvic rhabdomyosarcoma as those obtained with more traditional approaches; this limitation in use of surgery is likely to preserve the quality of life, should the child live to adulthood.