title: Primary synovial sarcoma arising from a crossed ectopic kidney with fusion.
abstract: Crossed renal ectopia with fusion is a rare anomaly of the kidney. The present case report describes a 67-year-old man with renal tumor who had been diagnosed as having a crossed ectopic kidney with fusion for 25 years. The pathological diagnosis of the primary tumor specimen was Wilms' tumor with favorable histology. Upon tumor recurrence, molecular detection of SYT-SSX2 fusion transcripts lead to the diagnosis of synovial sarcoma of the kidney. To our knowledge, this is the first case of primary synovial sarcoma arising from a crossed ectopic kidney with fusion.
authors.affiliation: Department of Urology, Shiga University of Medical Science, Otsu, Shiga, Japan. kageyama@belle.shiga-med.ac.jp
authors.forename: Susumu
authors.initials: S
authors.lastname: Kageyama
authors.forename: Teruhiko
authors.initials: T
authors.lastname: Tsuru
authors.forename: Keisei
authors.initials: K
authors.lastname: Okamoto
authors.forename: Mitsuhiro
authors.initials: M
authors.lastname: Narita
authors.forename: Yusaku
authors.initials: Y
authors.lastname: Okada
mesh_terms: D000368:Aged; D006801:Humans; D007668:Kidney / Q000002:abnormalities*; D007680:Kidney Neoplasms / Q000150:complications*; D008297:Male; D013584:Sarcoma, Synovial / Q000150:complications*