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Updated: Jul 16, 2026
07:10
Home-Based Prescribed Pulmonary Exercise in Patients with Stable Chronic Obstructive Pulmonary Disease
Published on: August 24, 2019
Progressive dyspnea in a 46-year-old woman
1Department of Allergy/Immunology, Walter Reed Army Medical Center, Washington, DC 20307, USA. rajiv.arora@us.army.mil
Summary
Hypersensitivity pneumonitis (HP) can be challenging to diagnose. This case highlights HP caused by bird antigens, emphasizing prompt antigen identification and removal for effective treatment.
Area of Science:
- Pulmonology
- Environmental Medicine
- Immunology
Background:
- Hypersensitivity pneumonitis (HP) is an inflammatory lung condition.
- Diagnosis requires a high index of suspicion for environmental antigens.
Observation:
- A patient presented with allergic rhinitis symptoms and progressive dyspnea.
- Physical exam revealed diffuse pulmonary crackles.
- Pulmonary function tests showed restrictive patterns.
Findings:
- The patient was diagnosed with HP secondary to parakeet antigens.
- Eliminating antigen exposure and corticosteroid therapy resolved symptoms.
Implications:
- Early diagnosis and antigen source removal are crucial for HP management.
- Environmental exposures are significant contributors to lung disease.
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