title: The Rarest of the Rare: Crossed Fused Renal Ectopia of the Superior Ectopia Type.
abstract: Crossed fused renal ectopia is a rare congenital anomaly of the urinary system where one kidney crosses over to opposite side and the parenchyma of the two kidneys fuse. Herein, we present an atypical CFRE case whose renal anatomy does not exactly match any of the already defined CFRE types. Both of the kidneys are ectopic with the crossed ectopic right kidney lying superiorly and fused to the upper pole of the left kidney. Renal arteries were originating from the common iliac arteries. A focal 90% stenosis was observed on the right main renal artery. The patient is borderline hypertensive.
authors.affiliation: Department of Internal Medicine, Ufuk University School of Medicine, Ankara, Turkey ; Dr. Rıdvan Ege Hospital, Konya Bulvarı No. 86-88, Balgat, Çankaya, 06520 Ankara, Turkey.
authors.forename: Leyla
authors.initials: L
authors.lastname: Akdogan
authors.affiliation: Department of Internal Medicine, Ufuk University School of Medicine, Ankara, Turkey ; Dr. Rıdvan Ege Hospital, Konya Bulvarı No. 86-88, Balgat, Çankaya, 06520 Ankara, Turkey.
authors.forename: Ali Kemal
authors.initials: AK
authors.lastname: Oguz
authors.affiliation: Department of Radiology, Baskent University School of Medicine, Alanya, Antalya, Turkey ; Baskent University School of Medicine, Alanya Research and Education Hospital, Alanya, 07400 Antalya, Turkey.
authors.forename: Tarkan
authors.initials: T
authors.lastname: Ergun
authors.affiliation: Division of Nephrology, Department of Internal Medicine, Ufuk University School of Medicine, Ankara, Turkey.
authors.forename: Ihsan
authors.initials: I
authors.lastname: Ergun