経過中に菌種交代を認めたアレルギー型肺アスペルギルス症の１例

DOI PubMed 被引用文献1件 参考文献12件

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  • Development of Infection with Aspergillus flavus in Woman Being Treated for Allergic Pulmonary Aspergillosis Caused by Aspergillus fumigatus.

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A 36-year-old woman who raised plants in a large greenhouse came to our hospital because of a cough and purulent sputum. A chest X-ray film showed infiltrative shadows in the left middle lung field. Aspergillus fumigatus was isolated from samples of sputum and bronchoalveolar lavage fluid obtained from the left B5. Biopsy specimens revealed hyphae elements of aspergillus species and eosinophils in a plug of viscous material. Also, eosinophils and lymphocytes had infiltrated through bronchial epithelium without aspergillus species. She was given a diagnosis of allergic aspergillosis caused by Aspergillus fumigatus. Fluconazole was given and her symptoms and infiltrative shadows improved. Seventy days after treatment with fluconazole began, her symptoms recurred along with an abnormal shadow in the left upper lung field on a chest X-ray film. Aspergillus flavus, but not Aspergillus fumigatus, was isolated from samples of sputum and bronchoalveolar lavage fluid obtained from the left lung (S1+2) Biopsy specimens of the lung showed eosinophilic pneumonia. She was treated with itraconazole and her symptoms and abnormal radiographic shadows disappeared. She had no asthmatic attack or central bronchiectasis during the illness. This was a case of allergic pulmonary aspergillosis without asthmatic symptoms. It is interesting that one species of aspergillus was replaced by another during treatment.

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