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Benign retroperitoneal schwannoma Treatment Tracking Results

All information is based on patient-tracked and shared data. A benign (non-cancerous) retroperitoneal (behind lower abdominal cavity) schwannoma is also known as neurilemoma. It is a non-cancerous nerve sheath (nerve covering) tumor composed of Schwann cells. The tumor can compress nearby nerves and causes pain, weakness, and decreased sensation.