Probe position 2, 3a, and 3b. (a) Liver (L) and right kidney (K) are visible; there is no echo-free fluid above or below the liver. (b) An anechoic fluid collection is visible above the liver and the echogenic diaphragm (filled arrow) representing pleural effusion (open arrow) on the right side. (c) A small anechoic fluid collection is visible between the liver and the right kidney (open arrow) (Morrison's pouch). Free abdominal fluid can be diagnosed. (d) Two hypoechoic large lesions (filled arrow) can be seen in the parenchyma of the liver.