SUMMER-TYPE HYPERSENSITIVITY PNEUMONITIS CAUSED BY A HUMIDIFIER INDUCED IN SPRING, IN A 5-YEAR-OLD GIRL LIVING IN FUKUSHIMA—A CASE REPORT

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  • 福島県で春期に発症し，加湿器が原因と考えられた夏型過敏性肺炎の5歳女児例
  • 症例報告 福島県で春期に発症し,加湿器が原因と考えられた夏型過敏性肺炎の5歳女児例
  • ショウレイ ホウコク フクシマケン デ シュンキ ニ ハッショウ シ,カシツキ ガ ゲンイン ト カンガエラレタ ナツガタ カビンセイ ハイエン ノ 5サイ ジョジレイ

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Abstract

<p>A 5-year-old girl living in Koriyama, Fukushima Prefecture was admitted in April with cough persisting for 1 month and fever. Chest X-ray showed diffuse ground-glass shadows in both lungs. After treatment with antibiotics, her fever went down on the 2nd day, and her cough subsided gradually. She was discharged on the 7th day, but her symptoms relapsed on the 8th day. Due to her worsening symptoms, she was readmitted on the 16th day. Chest CT scans showed enhancement of interstitial density. Serum anti-Trichosporon asahii antibody was positive. Her symptoms rapidly improved on a steroid regimen, and she was discharged on the 23th day. She was diagnosed as having summer-type hypersensitivity pneumonitis (SHP). She was instructed not to use a moldy humidifier and not to go to her grandmother's 57 years old wooden house. She has had no symptom after discharge. However, suspected mold was not found at her grandmother's house, and a provocation test there was negative. The HLA typing of the patient showed HLA-DQ8, which was previously described as SHP-sensitive.</p>

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