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Allergic bronchopulmonary aspergillosis : ウィキペディア英語版
Allergic bronchopulmonary aspergillosis

Allergic bronchopulmonary aspergillosis (ABPA) is a condition characterised by an exaggerated response of the immune system (a hypersensitivity response) to the fungus ''Aspergillus'' (most commonly ''Aspergillus fumigatus''). It occurs most often in patients with asthma or cystic fibrosis. ''Aspergillus'' spores are ubiquitous in soil and are commonly found in the sputum of healthy individuals. ''A. fumigatus'' is responsible for a spectrum of lung diseases known as aspergilloses.
ABPA causes airway inflammation, leading to bronchiectasis—a condition marked by abnormal dilation of the airways. Left untreated, the immune system and fungal spores can damage sensitive lung tissues and lead to scarring.
The exact criteria for the diagnosis of ABPA are not agreed upon. Chest X-rays and CT scans, raised blood levels of IgE and eosinophils, immunological tests for ''Aspergillus'' together with sputum staining and sputum cultures can be useful. Treatment consists of corticosteroids and antifungal medications.
==Signs and symptoms==
Almost all patients have clinically diagnosed asthma, and present with wheezing (usually episodic in nature), coughing, shortness of breath and exercise intolerance (especially in patients with cystic fibrosis). Moderate and severe cases have symptoms suggestive of bronchiectasis, in particular thick sputum production (often containing brown mucus plugs), as well as symptoms mirroring recurrent infection such as pleuritic chest pain and fever. Patients with asthma and symptoms of ongoing infection, who do not respond to antibiotic treatment, should be suspected of ABPA.〔

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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