RESUMEN
A 34-year-old man with no medical history presented to our hospital with a sore throat and difficult oral intake for two days before admission. He had various symptoms, including red eyes, ocular discharge, a fever, and intraoral ulcers, and he was admitted immediately. The polymerase chain reaction test for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was positive, as was the adenovirus antigen test of the pharyngeal swab fluid, suggesting overlapping adenovirus and SARS-CoV-2 infections. The patient's condition improved with conservative treatment. This case of severe and varied symptoms caused by co-infection with adenovirus and SARS-CoV-2 has been previously reported.
RESUMEN
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.