대한흉부영상의학회 Korean Society of Thoracic Radiology

Discussion

Diagnosis With Brief Discussion

Diagnosis

Idiopathic Bronchiolitis Obliterans Organizing Pneumonia (BOOP)

Radiologic Findings

Brief Review

BOOP is a clinicopathologic entity characterized clinically by a disorder with systemic symptoms such as cough, sputum and pathologically by the presence of granulation tissue within the respiratory bronchioles and alveolar ducts with patchy areas of interstitial inlammatory cell infiltration largely of mononuclear cells and foamy macrophages.
Typical high-resolution CT findings of the disease are bilateral areas of airspace consolidation (seen in 80% of cases) and ground-glass opacity (in 60% of cases), small, ill-defined nodules (30% to 50% of cases) at the subpleural and/or peribronchial regions. Honeycombing is usually absent.

References

1. Webb WR, Muller NL, Naidich DP. High-resolution CT of the lung, second edition. Philadelphia: Lippincott Raven Publisher 1996:206-210
2. Lee KS, Kullnig P, Hartman TE, Muller NL. Cryptogenic organizing pneumonia: CT findings in 43 patients. AJR 1994; 162:543-546

Keywords

Lung, Idiopathic interstitial pneumonia, COP, IIP, Idiopathic Bronchiolitis Obliterans Organizing Pneumonia (BOOP)