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[A case of tracheobronchomegaly]
A Yoshitomi1, H Kuwata, T Suzuki
1Division of Pulmonary Medicine, Shizuoka Red Cross Hospital, Japan.
Summary
This case report details a rare instance of tracheobronchomegaly with tracheobronchomalacia in an elderly male patient presenting with pneumonia. The study highlights the diagnostic challenges and clinical presentation of this uncommon respiratory condition.
Area of Science:
- Pulmonology
- Radiology
- Internal Medicine
Background:
- Tracheobronchomegaly, characterized by an abnormally enlarged trachea and bronchi, is a rare condition.
- Tracheobronchomalacia involves dynamic airway collapse, often presenting with chronic respiratory symptoms.
- Co-occurrence of these conditions presents unique diagnostic and management challenges.
Observation:
- A 77-year-old male presented with chronic cough, fever, and dyspnea.
- Radiographic findings revealed significant tracheal and main bronchial enlargement (trachea diameter 31 mm) with upper lung field consolidation.
- Bronchoscopy demonstrated inspiratory dilation and expiratory collapse of the trachea and main bronchi, consistent with crescent-type tracheobronchomalacia.
Findings:
- Diagnosis of tracheobronchomegaly with pneumonia was established.
- Pneumonia showed improvement following treatment with piperacillin/tazobactam and bed rest (PAPM/BP).
- Bronchial mucosa biopsy revealed non-specific chronic inflammation.
Implications:
- This case underscores the importance of considering rare airway pathologies in patients with persistent respiratory symptoms.
- Accurate diagnosis through combined radiographic and bronchoscopic evaluation is crucial for effective management.
- Understanding the interplay between airway structural abnormalities and superimposed infections is vital for patient outcomes.