[Ewing's soft-tissue sarcoma--case report]

This paper reports a very rare case of 5-years old girl with a tumor of the right kidney and metastatic changes in the inferior vena cava and right heart. Following the nefrectomy Wilms' tumour diagnosis was established. There was no an adequate answer on chemotherapy according to SIOP i.v. protocol. Three months later metastatic changes spreaded to lungs, pelvic bones and distant lymphonodes of the neck and axillas. The patient in a very severe condition was evacuated to England (Alder Hay Children's Hospital, Liverpool). After numerous tests the diagnosis of Wilms's tumor was excluded and diagnosis of Ewing's sarcoma (soft tissue) was established.