[Tumors and tumor-like lesions in children (based on 5 years' biopsy data)].

The material examined allows the authors to admit that for the diagnosis of children tumours the morphological criteria recommended by WHO classifications should be used until the specific histological classification of children neoplasms is worked out. This approach will permit the experts from different hospitals to come to the unified opinion as to the evaluation of the children tumour morphology, will make comparable the results of their studies which will create the possibility for complex investigations and will facilitate the elaboration of specific classification of tumours in this age group.