Tumores retroperitoneales primarios. Revisión de nuestros casos de los diez ultimos años

Abstract

OBJECTIVES: To investigate our case series of patients with primary retroperitoneal tumors over the past 10 years, analyzing clinical symptoms, diagnostic tests, tumor pathology, surgical data, concomitant can-cer treatments, recurrence and survival rates. METHODS: Retrospective analysis of 37 patients with primary retroperitoneal tumors diagnosed at our hospital over the past 10 years. RESULTS: Computed tomography (CT) was the imaging technique used most often and the most accurate. Tumors were malignant in 83% of patients and benign in 17%. Complete tumor resection was performed in 73% of cases; the most common approach was midline la-parotomy. Neighboring organs were also removed in 51.8% of cases in which radical resection was perfor-med. The recurrence rate was 45% in patients who un-derwent surgery. Median time to onset of recurrence following open surgery was 23 months. Repeat resec-tion was performed in 66% of cases with recurrence. Five-year survival following total resection of malignant tumors was 44%. The mean patient survival after repeat resection was 9.8 months. CONCLUSIONS: Primary retroperitoneal tumors are rare and usually malignant. Surgery is the treatment of choice and complete tumor resection is the main factor that determines prognosis.