The radiographic signs of fatty liver.

Ninteen cases of radiographically visible fatty liver are presented. The four radiographic signs are muscle-fat interface, fat-water interface, a visible hollow viscus wall, and blurring of the medial margin of the right properitoneal fat stripe. The last sign, the authors believe, is the earliest radiographic change in developing fatty liver. In one case, isolated glycogen synthetase deficiency was the cause of fatty liver; this finding, to the authors' knowledge, has not previously been described. The value of the chest radiograph in diagnosing fatty liver is stressed.