Feather duvet lung

Patrick Liu-Shiu-Cheong, Chris RuiWen Kuo, Struan W A Wilkie, Owen Dempsey

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


A 43-year-old non-smoker was referred with a 3-month history of malaise, fatigue and breathlessness. Blood avian precipitins were strongly positive. Lung function testing confirmed a restrictive pattern with impaired gas transfer. A 'ground glass' mosaic pattern was seen on CT imaging, suggestive of hypersensitivity pneumonitis. Although he had no pet birds, on closer questioning he had recently acquired a duvet and pillows containing feathers. His symptoms, chest radiograph and lung function tests improved after removal of all feather bedding, and he was also started on oral corticosteroid therapy. Our case reinforces the importance of taking a meticulous exposure history and asking about domestic bedding in patients with unexplained breathlessness. Prompt recognition and cessation of antigen exposure may prevent the development of irreversible lung fibrosis.

Original languageEnglish
Article numbere231237
Number of pages5
JournalBMJ Case Reports
Issue number11
Publication statusPublished - 18 Nov 2019


  • Adult
  • Animals
  • Bedding and Linens/adverse effects
  • Bird Fancier's Lung/diagnosis
  • Computed Tomography Angiography
  • Delayed Diagnosis
  • Dyspnea/etiology
  • Feathers/immunology
  • Humans
  • Lung/diagnostic imaging
  • Male
  • Medical History Taking
  • Respiratory Function Tests


Dive into the research topics of 'Feather duvet lung'. Together they form a unique fingerprint.

Cite this