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Author Spotlight: Investigating the Pathophysiology of Eosinophilic Esophagitis
Published on: May 10, 2024
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[A case of clinically diagnosed eosinophilic bronchiolitis]
Yosuke Miura1, Yoshio Tomizawa2, Tomohito Kuwako2
1Department of Respiratory Medicine, National Hospital Organization Nishigunma Hospital; Gunma University Graduate School of Medicine, Department of Medicine and Molecular Science, Allergy and Respiratory Medicine.
Arerugi = [Allergy]
|December 11, 2014
Summary
Eosinophilic bronchiolitis, a rare lung disease, presents with persistent cough and difficulty breathing. Marked eosinophilia in sputum can aid diagnosis when invasive tests are not feasible.
Area of Science:
- Pulmonology
- Internal Medicine
Background:
- Eosinophilic lung diseases encompass a spectrum of conditions characterized by eosinophil infiltration of lung tissue.
- Distinguishing between various eosinophilic lung diseases and other obstructive lung diseases can be challenging.
Observation:
- A 71-year-old male presented with intractable productive cough, dyspnea, and hypoxemia unresponsive to asthma treatment.
- Diagnostic findings included marked peripheral blood and sputum eosinophilia, bilateral centrilobular nodules on CT, and mixed ventilatory impairment.
Findings:
- Clinical diagnosis of eosinophilic bronchiolitis was made due to progressive respiratory failure precluding invasive procedures like lung biopsy.
- Prompt administration of oral prednisolone resulted in rapid symptomatic and objective improvement.
Implications:
- Eosinophilic bronchiolitis should be considered in the differential diagnosis of patients with persistent obstructive lung disease and eosinophilia.
- Sputum eosinophil counts may serve as a valuable non-invasive biomarker for diagnosing eosinophilic bronchiolitis, especially when advanced investigations are contraindicated.
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