Figure 5From: Expiratory CT scan in patients with normal inspiratory CT scan: a finding of obliterative bronchiolitis and other causes of bronchiolar obstruction55-year-old woman with known rheumatoid arthritis complaining of exertional dyspnea, chronic cough and obstructive pattern at respiratory tests. On coronally-reformatted inspiratory CT image no lung abnormalities can be seen (a). Coronally-reformatted expiratory CT image shows extensive air-trapping (b). Note presence of subchondral cysts (arrows) and narrowing of gleno-humeral joint spaces.Back to article page