[Mycologic analyses of house dust in patients with mycotic infections of the paranasal sinuses and in healthy probands].

Dust samples from 30 patients suffering from an aspergillus sinusitis and from 20 healthy persons were analysed for moulds as a possible cause of mycotic sinusitis. Questionnaires were also distributed to assess the ecological environment of the patients. Mycological analyses of the dust samples showed no statistical difference in the presence of moulds, especially those of Aspergillus fumigatus and Aspergillus niger. Both moulds were found to roughly the same extent in 75%-95% of subjects. The questionnaires showed that most patients were exposed to moulds during work as well as in their spare time. The case history always showed a chronic sinusitis. Thus it appears that the development of a mycotic sinusitis is caused by many factors.