Diagnostic Ultrasound - Abdomen and Pelvis

Peritoneal Spaces and Structures
Anatomy: Abdomen
RIGHT SUPRAMESOCOLIC SPACE
Fluid in right subphrenic space
Atelectatic right lung
Cirrhotic liver
Right hemidiaphragm
Right pleural effusion
Fluid in anterior subhepatic space
Cirrhotic liver (right lobe)
Fluid in Morison pouch
Gallbladder
Right kidney
Fluid in right anterior subhepatic space
Visceral peritoneum
Right lobe of liver (cirrhotic with nodular
contour)
Fluid in Morison pouch
Parietal peritoneum
Right kidney
(Top) Intercostal oblique grayscale ultrasound (in a patient with cirrhosis) shows the dome of the right lobe of the liver and moderate
fluid in the right subphrenic region extending anterior to the liver. The fluid is separated from the right-sided pleural effusion by the
right diaphragmatic leaf. (Middle) Subcostal oblique transverse ultrasound of the right upper quadrant shows fluid in the right anterior
subhepatic space and in the hepatorenal space. The ascites are secondary to hepatic cirrhosis and the gallbladder is physiologically
distended. (Bottom) Longitudinal transabdominal grayscale ultrasound shows fluid in the right posterior subhepatic space, also known
as the Morison pouch, and hepatorenal fossa. This space is continuous with the right anterior subhepatic space and right paracolic
gutter.
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