[Intraspinal tumor--a rare cause of low back pain in school children].

On the background of two cases, characteristic features of intraspinal tumours in school children are discussed with the purpose of early detection of this and other serious back diseases in the large group of school children with non-specific low back pain. Special attention should be paid to children with recurrent or persistent low back pain. MRI scanning is preferable to CT, when a spinal tumour is suspected.