대한흉부영상의학회 Weekly Chest Cases

Courtesy of Kun-Il Kim, MD, Koun-Sik Song, MD / Pusan National University Hospital, Ulsan University Asan Medical Center
Age/Sex 39 / F
Chief ComplaintGeneral weakness, mild dyspnea

Diagnosis: BOOP (bronchiolitis obliterans organizing pneumonia)
Radiologic Findings: CT scans show multifocal areas of consolidation and small nodules in both lungs with a striking peribronchovascular distribution.
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 air-space 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, BOOP (bronchiolitis obliterans organizing pneumonia)

대한흉부영상의학회 Korean Society of Thoracic Radiology