The rhabdomyosarcoma showed signs of lobular solid mass within the renal parenchyma, pelvis or upper part of the ureter, with crescent low density subcapsular hematoma surrounding the kidney.

Here is the microscopic appearance of recessive polycystic kidney disease (RPKD). Note that the cysts fill most of the parenchyma, and it is hard to find glomeruli.

This transverse CT scan of the liver demonstrates multiple large cysts in the parenchyma, consistent with polycystic change in the liver of a patient with dominant polycystic kidney disease.