[Calculosis of biliary and urinary tracts in children with congenital hemolytic anemias. (Retrospective view of some published work and certain investigations)].

During the last ten years twenty children with hereditary haemolitic anemia were admitted to the Children's University Hospital. As hyperbilirubinemia is one of the factors influencing calculi formation, we made systematic examination of the biliary and urinary pathways, because throughout these the excretory activity of bilirubin and its compound urobilinogen is performed. Owing to such a procedure, out of twenty children ten were discovered to have biliary calculi and other ten biliary and urinary calculi.

[Roentgenomorphologic aspects of osseous lesions in thalassemia].

In bones two functionally different organs are closely mingled: osseous tissue and osseous hematopoietic system. In the work their interrelation and laws governing it are discussed. In cases of aggression toward osseous hematopoietic system osseous lesions, with their evolutive stages, are formed.

Juvenile nephronophthisis associated with retinal pigmentary dystrophy, cerebellar ataxia, and skeletal abnormalities.

A boy aged 9 3/4 years with interstitial nephritis, retinal pigmentary dystrophy, cerebellar ataxia, and skeletal abnormalities is described. The association may be due to a new genetic disorder, since 2 similar cases have been reported.