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- Title
Familial summer-type hypersensitivity pneumonitis in Japan: two case reports and review of the literature.
- Authors
Akira Nakajima; Takeshi Saraya; Takeshi Mori; Reiko Ikeda; Takashi Sugita; Takayasu Watanabe; Masachika Fujiwara; Hajime Takizawa; Hajime Goto
- Abstract
Background: Hypersensitivity pneumonitis is defined as an allergic lung disease that occurs in response to inhalation of fungal antigens, bacterial antigens, chemicals, dusts, or animal proteins. The incidence of summer-type hypersensitivity pneumonitis is higher in the summer season, especially in Japan, due to the influence of the hot and humid environment and the common style of wood house or old concrete condominiums. Case presentation: The present report describes a case of a middle-aged married couple who lived in the same house and who simultaneously suffered from summer-type hypersensitivity pneumonitis. This report analyzes these two cases in terms of environmental research and its microbiological, radiological, and pathological aspects. This case report is followed by a review of family occurrences of summer-type hypersensitivity pneumonitis from 22 studies with a total of 49 patients (including the two present cases) in Japan. Conclusion: Summer-type hypersensitivity pneumonitis may be unrecognized and misdiagnosed as pneumonia or other respiratory diseases. A greater understanding of the clinical, pathologic, and environmental features of summer-type hypersensitivity pneumonitis might help improve diagnosis and delivery of appropriate management for this condition.
- Subjects
HYPERSENSITIVITY pneumonitis; RESPIRATORY allergy; DUST diseases; FUNGAL antigens; BACTERIAL antigens; FAMILIAL diseases; SUMMER
- Publication
BMC Research Notes, 2013, Vol 6, Issue 1, p1
- ISSN
1756-0500
- Publication type
Case Study
- DOI
10.1186/1756-0500-6-371