Roentgenographically visible fatty liver in cystic fibrosis.

The initial roentgenograms of 178 consecutive newly diagnosed patients with cystic fibrosis 
seen during the past five years were reviewed to determine the 
presence of fatty liver. Seven cases of visibly fatty liver were 
identified. The incidence of visibly fatty liver on the initial roentgenograms 
in newly diagnosed cases of cystic fibrosis was 4%. The cause 
of fatty infiltration of the liver in cystic fibrosis is not 
clear; however, the basis is most likely a nutritional deficiency in 
protein. 