Peliosis hepatis in a child.

Peliosis hepatis, which has previously only been reported in adults, occurred in 
a chronically ill 11-year-old boy with cystic fibrosis. As in cases 
in adults, chronic illness, long-term anabolic steroid therapy, and right ventricular 
congestive failure may well have been the causative factors in this 
case. Histologically, the phlebectatic and parenchymal types, which were presumed to 
be separate, were found conjointly in this case. This is compatible 
with its origin from severe right ventricular congestive failure. The rarity 
of peliosis, however, indicates that one or more as yet unknown 
factors might be operative in its development. 