Some researchers have suggested that hyperechogenicity of the renal cortex (i.e. renal cortex echogenicity greater than or equal to liver echogenicity) indicates renal disease, but Wiersma et al.

Ultrasound showed renal cysts and increased echogenicity of the parenchyma in both kidneys. The diagnostic hypothesis was hyperparathyroidism secondary to chronic/polycystic kidney disease. The ...