title: A unique case of hot tub lung worsening during the winter.
abstract: Summer-type hypersensitivity pneumonitis includes a spectrum of granulomatous lung diseases that result from the inhalation of Trichosporon species in the summer. Hot tub lung is a granulomatous lung disease caused by the inhalation of water aerosols containing non-tuberculous mycobacteria. We herein describe a case of hot tub lung that deteriorated during the winter season. Every winter, the patient's symptoms, laboratory findings and chest images worsened. Genetically identical Mycobacterium avium strains were detected in his sputum and bathtub. The circulation of bathtub water during the winter months only exacerbated his symptoms in the winter.
authors.affiliation: Department of Internal Medicine, National Hospital Organization Kinki-Chuo Chest Medical Center, Japan.
authors.forename: Shojiro
authors.initials: S
authors.lastname: Minomo
authors.forename: Kazunobu
authors.initials: K
authors.lastname: Tachibana
authors.forename: Kazunari
authors.initials: K
authors.lastname: Tsuyuguchi
authors.forename: Masanori
authors.initials: M
authors.lastname: Akira
authors.forename: Masanori
authors.initials: M
authors.lastname: Kitaichi
authors.forename: Katsuhiro
authors.initials: K
authors.lastname: Suzuki
mesh_terms: D000336:Aerosols; D006801:Humans; D008297:Male; D008875:Middle Aged; D009162:Mycobacterium avium / Q000302:isolation & purification; D015270:Mycobacterium avium-intracellulare Infection / Q000175:diagnosis* / Q000503:physiopathology*; D018410:Pneumonia, Bacterial / Q000175:diagnosis* / Q000382:microbiology / Q000503:physiopathology*; D012621:Seasons; D014871:Water Microbiology
chemical_list: D000336:Aerosols