Hepatorenal recess of subhepatic space

The Morison Pit ( Morison bag, Morison 's pouch, Morison pouch, recess mori soni, often falsely also Morrison pouch, etc.) is situated intraperitoneal space. Its back wall is formed by the retroperitoneal location right kidney and its front through the rear wall of the right lobe.

The Morison Mine is named after the British surgeon James Rutherford Morison ( 1853-1939 ).

Special significance of this space in the ultrasonic diagnosis: When a person lying on his back, this room is located deepest in the abdominal cavity, so that fluids (eg blood in case of injury to internal organs or ascites due to liver disease ) there can accumulate and be recognized by the inexperienced user of the ultrasound. The presence of liquid ( "free liquid") in this room or in the pouch of Douglas leads in a multiple injured usually a change in the therapeutic strategy, because the life of the injured person from an internal injury ( for example, a plan of the spleen ) is far more threatened than by a breach of the extremities.

An accumulation of fluid on the left side is searched in the Koller- Pouch.