Renal Dysplasia
Section Editor: Dharam M. Ramnani, MD
Virginia Urology, Richmond, VA, USA
Image Description
Multicystic Kidney Dysplasia (MKD): The septa between the cysts contain sparse number of immature tubules surrounded by collarettes of primitive smooth muscle cells that express estrogen and progesterone. The tubules are lined by a single layer of undifferentiated cuboidal or columnar epithelium that may be thrown into papillary folds (as shown here).