Horse Shoe Kidney: Spot Diagnosis

Horse shoe kidney- described classically as : Large kidney mass consisting of two lateral lobes and an isthmus of apparently normal kidney tissue between the lower lobes. Each lateral lobe possessed a hilum on its anterior surface from which the calices emerged to form the ureter. The ureters passed downward over the anterolateral surface of the lower poles, then across the terminal parts of the common iliac vessels, to enter the bladder in the usual manner. Though Aorta and IVC appear normal with no accessory renal arteries, however thin sections required to comment on the same. Both kidneys were in symmetrical ptosis and in close proximity to the vertebral column.   Case Submitted by Dr Rishu Sangal.