[Management of primary retroperitoneal tumors].

Of 78 patients with primary retroperitoneal tumors, 38 were male and 40 female on the average 41 years age. Twenty-seven patients (35%) had benign tumors, 51 (65%) malignant. The biggest tumor weighted 28.5 kg. Complete resection was performed in 57 patients (73.1%), palliative in (11.5%). 64.7% of the patients with malignant tumor underwent complete resection with 1, 3, 5 year survival rates of 84.9%, 72.6% and 62.2%, respectively. Our experience showed that CT not only detected the mass, but also clearly defined its relationship to the adjacent viscera and vessel. It is suggested that embloc resection of the entire tumor with involved organs and tissues be used to decrease local recurrence and enhance the survival rate. The importance of aggressive reoperation for recurrence was also emphasized.