Sonography of macrocysts in infantile polycystic kidney disease.

The typical sonographic appearance of autosomal recessive polycystic kidney disease (ARPKD) has been described as symmetrically enlarged, echogenic kidneys with occasional visualization of small cysts. Modern sonographic equipment, however, allows a greater ability to show parenchymal detail, and multiple tiny cysts and occasionally dilated tubular structures have become apparent. In this report, we describe sonographic findings of ARPKD that are quite similar to the macroscopic appearance.