Subdiaphragmal ascites in right heart failure, normal liver surface.
Ascites is understood as the pathological accumulation of fluids in the free abdominal cavity (peritoneum).
The diagnosis of ascites includes among other things:
Possibly, one can do a punction, more precisely, a peritoneal punction, for the exact determination of the fluid (protein content, tumor cells, infectious pathogens etc.).
Source: Ultraschall-Atlas