[Retroperitoneal tumors]

The authors have referred their fifteen-year-old experiences in the treatment of the pathologically proved retroperitoneum tumours, classified according to Patel. The number of the affected persons is a very small one-only seven patients out of 100,000 inhabitants during the fifteen years' period. At the very beginning, the clinical symptomatology in a very poor one, so that it is not easy to diagnose a tumour. An early diagnosis as well as a timely surgical treatment are very important in the illness prognosis. As to our practice, malignancies prevail (57%). All patients, by whom a tumour has been diagnosed, have undergone surgery, its span of time depending on the local analysis, tumour restricted area, infiltration into the neighbouring tissues and its adherentness to the neighbouring organs. The post-surgical mortality amounts to 28%. The surgical results among benignancies are satisfactory. The results among malignancies depend on the pathohistological structure and their prevalence. We can partially improve the prognosis, if, besides a partial resection of these malignancies, we can add a cytostatic resection and a radio-therapy.