Discussion
Diagnosis With Brief Discussion
- Diagnosis
- Diffuse Panbronchiolitis associated infection
- Radiologic Findings
- ??Chest radiograph at admission shows diffuse small ill-defined nodular opacities most prominent over the lung bases and symmetrically distributed. Mild to moderate hyperinflation is also noted. HRCT scans demonstrate bronchiolectasis with thickening of bronchiolar wall and centrilobular nodules. Follow-up chest radiograph after antiobiotics shows marked decrease of the nodular infiltration, but persisted peribronchial infiltration. Haemophilus influenzae is isolated in the sputum of the patient. PNS examination revealed pansinusitis
- Brief Review
- Diffuse panbronchiolitis (DPB) is an idiopathic inflammatory disease that is not uncommon in Japan, Korea, and China. It is characterized by progressive suppurative and obstructive airway disease, first involving the sinuses and respiratory bronchioles, which, left untreated, progresses to bronchiectasis, respiratory failure, and death. Its distinctive imaging and histologic features, the presence of sinusitis, and the isolation of Haemophilus influenzae and Pseudomonas aeruginosa in the sputum should enhance disease recognition. In the early stages of the disease, the sputum generally contains normal flora or Hemophilus influenzae. Colonization with Pseudomonas aeruginosa eventually occurs, which appears to accelerate the destructive process. The natural history of diffuse panbronchiolitis is characterized by progressive respiratory dysfunction with episodic bacterial superinfection, often with P. aeruginosa. If DPB is left untreated, only 12 to 25% of patients survive 10 years. The long-term use of low-dose erythromycin therapy has proven to be highly effective in treating patients with DPB.
- References
- 1. Kenneth W T Tsang, Clara G C Ooi, Mary S M Ip, et al. Clinical profiles of Chinese patients with diffuse panbronchiolitis Chest. 2002;121:659-661.
2. Fitzerald JE, King TE Jr, Lynch DA, Tuder RM, Schwarz MI. Diffuse panbronchiolitis in the United States. Am J Respir Crit Care Med 1996;154:497?503.
- Keywords
- Airway, Infection, Bacterial infection,