How does the normal healthy liver appear on ultrasound?

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A normal healthy liver on ultrasound has a diffuse, uniform, homogeneous appearance with medium-level echogenicity. This means the parenchyma looks the same throughout, without focal bright or dark areas, and the internal echoes are at a moderate brightness—not too bright like fat overgrowth and not dark like fluid. The fine, even texture reflects the orderly arrangement of hepatocytes and vessels, giving a smooth, continuous look across the liver. In practice, the liver is usually isoechoic to or slightly less bright than the renal cortex, contributing to that consistent, uniform appearance.

If the liver showed diffuse heterogeneous echogenicity, that would point to underlying pathology affecting the whole organ, such as steatosis, inflammation, or fibrosis. A highly echogenic liver with irregular margins suggests cirrhosis or nodular change. An anechoic liver would be abnormal, indicating fluid-filled spaces or cystic/vascular structures rather than normal hepatic parenchyma.