Is S-shaped kidney always a fusion anomaly? Radiological diagnosis of a new anatomical variant of a single kidney

Abstract

The term ′S-shaped kidney′ typically refers to a variant of crossed-fused ectopia in which the crossed kidney is fused with the lower pole of the orthotopic kidney maintaining its orientation resulting in medially facing upper-pelvis and laterally facing lower-one; no kidney is present in the other renal fossa. [1] We present rational diagnosis and management of a rare anatomic variant of a single kidney with S shaped anomaly.

Keywords

• Calices
• computed
• hydronephrosis
• kidney
• pyelography
• retrograde
• tomography