Experience in diagnosis and treatment of benign pelvic tumors and tumor-like diseases in children was summarized. There were 104 patients, aged 2-18 years. Complex diagnosis included modern radiologic methods (CT, MRT, angiography). The treatment was performed taking into account the nosologic form and pathologic process volume. Vast resections of pelvic bones were performed in osteochondroma, fibrous dysplasia, chondromyxoid fibroma, solid form of aneurismal cyst as well as in aneurismal cysts in cases of failed paracentetic treatment. In tumors of small sized (osteoid-osteoma, osteoblastoma) surgical treatment was performed with computer navigation. Paracentetic treatment was applied in aneurismal cysts, eosinophilic granulema of bone as well as in residual cavities after failed previous interventions. In patients with aggressive aneurismal cysts roentgenendovascular embolization of pathologic vessels in combination with paracentetic treatment or endoscopic intervention were used. Follow-up ranged from 1 to 8 years. Recurrences were noted in 3 (6.4%) patients with aneurismal cyst.

children, tumor, tumor-like diseases, pelvis, bone, surgical treatment .