title: Primary retroperitoneal synovial sarcoma in CT and MRI.
abstract: Synovial sarcomas are most commonly localized in the extermities, especially the lower thigh and knee areas. Retroperitoneal synovial sarcoma is very rare. We decribe the radiological findings of an adult retroperitoneal synovial sarcoma.
authors.affiliation: Department of Radiology and Medical Imaging, King Faisal Specialist Hospital and Research Center.
authors.forename: Abdulmajeed R
authors.initials: AR
authors.lastname: Alhazzani
authors.forename: Mohamed Sherif
authors.initials: MS
authors.lastname: El-Sharkawy
authors.forename: Hamdy
authors.initials: H
authors.lastname: Hassan