Fig. 2From: Ultrasound to address medullary sponge kidney: a retrospective studya Right kidney showing inversion of the normal cortico-medullary echogenicity pattern: in this patient with nephrocalcinosis, the pyramids and medulla are strikingly hyperechogenic, because of the deposition of crystals (Philips iU 22, multifrequency convex probe C5–1); b B-mode image of the right kidney, obtained with a 12.5 MHz linear probe. Cysts of the inner medulla are better recognized (Esaote MyLab Seven, 12.5 MHz linear probe)Back to article page