Discussion
Diagnosis With Brief Discussion
- Diagnosis
- Bronchiolitis Obliterans Organizing Pneumonia (BOOP)
- Radiologic Findings
- Chest CT scan shows multiple ,fuzzy marginated nodules in both lungs. Some are represented as ground glass opacity or well defined nodule.
- Brief Review
- The organizing pneumonia pattern is often secondary to a known cause such as rheumatoid arthritis, viral pneumonia or drug reactions.
Most common chest radiograph shows bilateral or unilateral areas of patchy consolidation.
CT scan shows consolidation and ground-glass opacity with mild bronchial dilatation seen in regions of consolidation.
The distribution of COP is commonly involved subpleural or peribronchial area.
Differential diagnosis of CT findings includes alveolar cell carcinoma, lymphoma, vasculitis, sarcoidosis, and infection. When the consolidation is subpleural, chronic eosinophilic pneumonia should also be considered.
- Please refer to
Case 63, Case 110, Case 286, -
- References
- 1. Conrad Wittram, MB ChB Eugene J. Mark, MD Theresa C. McLoud, MD:CT-Histologic Correlation of the ATS/ERS 2002 Classification of Idiopathic Interstitial Pneumonias:RadioGraphics 2003; 23:1057?071
2. Christina Mueller-Mang, MD Claudia Grosse et al: What Every Radiologist Should Know about Idiopathic Interstitial Pneumonias; RadioGraphics 2007:27:595?15
- Keywords
- Lung, Idiopathic interstitial pneumonia, COP, IIP,