[Invasive pulmonary aspergillosis in the course of allergic pulmonary alveolitis].
20 years old man with history of acute allergic alveolitis 7 years ago, was admitted to hospital because of dyspnea, fever and cough after massive exposition to organic dust. Corticosteroids were introduced. During 3-weeks treatment respiratory failure progressed. Chest x-ray showed massive bilateral nodular opacities. Antibiotic therapy was not effective. The autopsy revealed invasive pulmonary aspergillosis. Presence of precipitins to aspergillus fumigatus was confirmed postmortem. Diagnostic difficulties are discussed.