[Giant retroperitoneal ganglioneuroma]

The authors report a new case of retroperitoneal ganglioneuroma in an 18-year-old girl presenting with abdominal mass and lumbosciatica. The diagnosis of retroperitoneal tumour was based on computed tomography and magnetic resonance imaging. Treatment consisted of complete resection of the tumour. The postoperative course was favourable with no recurrence after one year of follow-up. The authors discuss the diagnostic, therapeutic and prognostic aspects of this disease.