Radiation myelopathy in children.
Three children, 1 with medulloblastoma, 1 with anaplastic cerebellar tumor, and 1 with acute lymphocytic leukemia, received craniospinal irradiation with an estimated cord dose between 1,100 and 1,200 rets. All 3 patients after a latent period of seven to eight months developed subacute transverse myelopathy. The myelopathy was cervical in 2 patients and thoracic in 1. Spinal fluid examination showed high protein levels in 2 patients. Myelography demonstrated a swollen cord in 2 patients and normal appearance in 1. Autopsy in 1 patient disclosed a necrotizing myelopathy. The findings suggest that children tolerate less well than adults what previously have been considered safe doses of radiation to the spinal cord.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D011832:Radiation Injuries / Q000209:etiology*; D011836:Radiation Tolerance; D011878:Radiotherapy / Q000009:adverse effects*; D011879:Radiotherapy Dosage; D013116:Spinal Cord / Q000528:radiation effects; D013118:Spinal Cord Diseases / Q000209:etiology*; D013120:Spinal Cord Neoplasms / Q000532:radiotherapy