title: Synovial sarcoma of the kidney in a young patient with a review of the literature.
abstract: Synovial sarcoma (SS) is a soft tissue, generally deep seated neoplasms that occurs generally in the proximity of large joints. We report of a case of a 33-year-old man who was diagnosed with primary SS of the kidney which is an extremely rare tumor that accounts for less than 2% of malignant renal tumors. Contemporary management of renal synovial sarcoma includes surgical resection and ifosfamide-based chemotherapy and they remain the mainstay of therapy of synovial sarcoma, which is often applied, combined as part of an aggressive treatment approach. Fewer than 50 patients have been described in the English literature. Physicians should be aware of the possibility of malignancy in cystic renal masses and raise the suspicion of synovial sarcoma, especially when patients with renal masses are young adults. Along with the case report a literature review on primary synovial sarcomas of the kidney is provided with focus on the renal tumors' differential diagnosis.
authors.affiliation: Department of Pathology, Hanover Medical School , Germany.
authors.forename: Mahmoud
authors.initials: M
authors.lastname: Abbas
authors.affiliation: Department of Pathology, Hanover Medical School , Germany.
authors.forename: Maximilian E
authors.initials: ME
authors.lastname: Dämmrich
authors.affiliation: Department of Pathology, Hanover Medical School , Germany.
authors.forename: Peter
authors.initials: P
authors.lastname: Braubach
authors.affiliation: Department of Pathology, Hanover Medical School , Germany.
authors.forename: Andre
authors.initials: A
authors.lastname: Meinardus
authors.affiliation: Department of Urology, Hanover Medical School , Germany.
authors.forename: Mario W
authors.initials: MW
authors.lastname: Kramer
authors.affiliation: Department of Urology, Hanover Medical School , Germany.
authors.forename: Axel S
authors.initials: AS
authors.lastname: Merseburger
authors.affiliation: Department of Urology, Hanover Medical School , Germany.
authors.forename: Thomas R W
authors.initials: TR
authors.lastname: Herrmann
authors.affiliation: Department of Hematology, Hanover Medical School , Germany.
authors.forename: Viktor
authors.initials: V
authors.lastname: Grünwald
authors.affiliation: Department of Pathology, Hanover Medical School , Germany.
authors.forename: Hans-Heinrich
authors.initials: HH
authors.lastname: Kreipe
keywords: kidney; review of literature; synovial sarcoma