The<unk>  is a technique used by medical professionals during a physical exam to locate the inferior border of the<unk>  in order to approximate the size of a patient's<unk> . The technique was first credited to Burton-Opitz in 1925 where it was used to identify the cardiac silhouette, however there are references of similar techniques used prior to this. The<unk>  can be used when other exam techniques used to approximate<unk>  size are ineffective and is thought to be most useful if the abdomen is distended, too tender for direct palpation, the abdominal muscles are too rigid, or the patient is obese.
Liver scratch test
Liver biopsy
Coombs test
Lea test
Gallocyanin stain
LiMAx test
NS1 antigen test
ALCAT test