[Histiocytosis X in children--course of the disease and treatment]. / Histiocytosis X u dzieci--przebieg choroby i leczenie.

A clinical analysis was carried out of the course of the disseminated form of the disease in 20 children aged from one month to 8 years (mean age 11 months). Unfavourable prognostic significance was confirmed of such factors as: child's age at the time of falling ill lower than two years, number of the involved organs and their dysfunction, and lacking reaction to treatment during the first three months of the disease.