[Diffuse, telangiectatic arteriovenous anastomosis in the lung as the cause of cyanosis in an infant with persistent ductus arteriosus (author's transl)].

Compared to the discrete, solitary or multiple pulmonary arteriovenous fistulas, the type of diffuse telangiectatic arteriovenous anastomoses occurs less frequently. Pathogenetically an association with the morbus Rendu-Osler-Weber and with chronic liver diseases is discussed. Based on the literature, and an own case with an additional patent ductus arteriosus, the clinical features are described. Diagnostic results of pulmonary angiography are less helpful than the dynamic radionuclide perfusion scintigraphy which is of great value in following up the disease. There is no successful therapy.