Localized Cystic Disease of the Kidney: An Unusual Entity That Can Mimic a Cystic Neoplasm  Erik E. Dowden, MD, Adeboye O. Osunkoya, MD, Deborah A. Baumgarten, MD, MPH  American Journal of Kidney Diseases  Volume 55, Issue 3, Pages 609-613 (March 2010) DOI: 10.1053/j.ajkd.2009.08.023 Copyright © 2010 National Kidney Foundation, Inc. Terms and Conditions

Figure 1 (A) Longitudinal and (B) transverse grey-scale images show multiple predominantly anechoic round lesions within the lower pole of the right kidney. Several lesions have thin septations. Normal parenchyma is noted between several lesions (arrow). (C) Longitudinal color Doppler image shows no significant flow within the cystic area. American Journal of Kidney Diseases 2010 55, 609-613DOI: (10.1053/j.ajkd.2009.08.023) Copyright © 2010 National Kidney Foundation, Inc. Terms and Conditions

Figure 2 T2-weighted (A) axial and (C) coronal and T1-weighted postgadolinium (B) axial and (D) coronal images confirm the ultrasound findings of multiple cystic lesions involving only the lower pole of the right kidney. T1 and T2 images are obtained at different levels through the kidney. American Journal of Kidney Diseases 2010 55, 609-613DOI: (10.1053/j.ajkd.2009.08.023) Copyright © 2010 National Kidney Foundation, Inc. Terms and Conditions

Figure 3 Pathology slide with hematoxylin and eosin stain shows benign multilocular cysts with adjacent and entrapped kidney parenchyma consisting of glomeruli and tubules (arrows). American Journal of Kidney Diseases 2010 55, 609-613DOI: (10.1053/j.ajkd.2009.08.023) Copyright © 2010 National Kidney Foundation, Inc. Terms and Conditions