Hepatorenal recess

The hepatorenal recess (right subhepatic space, pouch of Morison or Morison's pouch) is the subhepatic space that separates the liver from the right kidney. It is the lowest dependent space of the peritoneal cavity in a supine person. As a potential space, the recess is not normally filled with fluid. However, fluid can collect here in circumstances where the abdomen fills with fluid, such as hemoperitoneum. This fluid may be seen on ultrasound or computed tomography (CT scan).