[Primary retroperitoneal tumors in adults: report of 11 cases]

The primitive retroperitoneal tumors are tumors which diagnosis isolate and thus the prognosis is poor. The authors assess the resectability of these tumors and the therapeutic results. We performed a retrospective study during 5 years, 11 patients were reviewed, in the unit of visceral surgical emergency of UHC Ibn-Rochd in Casablanca. The median age was 44 years old. The revealing signs were pains (67%), abdominal mass (54%), and compressive signs in 78%. The diagnosis was based on the computerized tomography in 10 cases (90%), the ultrasound sonography in 3 cases, and the IVU in 3 cases when it was necessary. The treatment was surgical in all cases. The resection was curative in 58%, 1 patient received chemotherapy. Histologically, the mesenchymatous variety was the most frequent (68%) and almost malignant (80%), the ectodermic origin was noted in 3 cases, and the vestigial in 1 case. The long-term follow-up was characterized by recurrence in 4 cases and 3 patients were lost to follow-up. The prognosis of the primitive retroperitoneal tumors is poor, because of a late diagnosis, and the malignant, and recurrent potential of these tumors.