[The evidence of precipitins in Aspergillus caused disorders of the lung as a diagnostic method (author's transl)].

A report is given about serologic results of 27 aspergilloses, mostly aspergillomas. The evidence of antibodies directed against aspergillus species was carried out by radial diffusion according to OUCHTERLONY and immunoelectrophoretically. Filtrate antigens ("metabolic antigens") were used troughout. The positive yield lies in about 90%. Regarding the criteria for evaluation no positive reactions were seen in a control group of 140 patients with serious tuberculosis and other lung disorders. The method is emphasized as diagnostic mean for clearing up shadows of the lung and for pathogenetic control of aspergillus--grown from lung materials.