Cystic lung disease: a comparison of cystic size, as seen on expiratory and inspiratory HRCT scans.

摘要: OBJECTIVE To determine the effects of respiration on size lung cysts by comparing inspiratory and expiratory high-resolution CT (HRCT) scans. MATERIALS AND METHODS The authors evaluated cystic lesions, as seen paired HRCT scans, in 54 patients with Langerhans cell histiocytosis (n = 3), pulmonary lymphangiomyomatosis 4), confluent centrilobular emphysema 9), paraseptal bullae 16), bronchiectasis 13), honeycombing 9). Using scans obtained at corresponding anatomic level, a total 270 lesions were selected simultaneously basis five per disease. Changes cyst observed during assessed two radiologists. In limited number cases 11), pathologic specimens open biopsy or lobectomy. RESULTS All histiocytosis, lymphangiomyomatosis, bronchiectasis, honeycombing, became smaller expiration, but there was no change. CONCLUSION which indicate that have become smaller, may communicate airways. whether, for this connection does fact exist, are necessary.