Remission of hypersensitivity pneumonitis after allogeneic hematopoietic stem cell transplantation

Yumi Inukai Motokura, Hisao Higo, Chiaki Matsumoto, Mari Uno, Kanako Fujiwara, Toshiki Terao, Satoko Makimoto, Fumiyo Higaki, Ken ichi Matsuoka, Fumiaki Tokioka, Yoshinobu Maeda, Nobuaki Miyahara

Research output: Contribution to journalArticlepeer-review

Abstract

A 50-year-old man was diagnosed with hypersensitivity pneumonitis caused by the environment of his bar owing to worsening symptoms, laboratory test results, and computed tomography images after an environmental inhalation challenge test. His hypersensitivity pneumonitis exacerbated despite receiving prednisolone 20 mg/day. The patient underwent allogeneic hematopoietic stem cell transplantation (HSCT) from a human leukocyte antigen-matched unrelated donor for myelodysplastic syndrome. No exacerbation of hypersensitivity pneumonitis was observed after HSCT. An environmental inhalation challenge test involving exposure to his bar confirmed the remission of hypersensitivity pneumonitis after HSCT. This case demonstrates that hypersensitivity pneumonitis can be remitted by HSCT.

Original languageEnglish
Pages (from-to)759-761
Number of pages3
JournalRespiratory Investigation
Volume62
Issue number5
DOIs
Publication statusPublished - Sept 2024
Externally publishedYes

Keywords

  • Allogeneic hematopoietic stem cell transplantation
  • Environmental inhalation challenge test
  • Hypersensitivity pneumonitis
  • Myelodysplastic syndrome

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine

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