Ancient retroperitoneal schwannoma: A case report

Schwannoma is a tumor of soft tissue originating from Schwann cells which rarely appears in the retroperitoneum region. The retroperitoneal schwannoma can grow to a large size slowly without any specific clinical sign or symptoms. We report a 35-year-old woman with ancient schwannoma complaining abdominal pain for three years, which was initially judged as urinary tract infection. Following imaging studies, retroperitoneal mass was found and...