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Radiology, Vol 189, 559-562, Copyright © 1993 by Radiological Society of North America

ARTICLES

Diffuse panbronchiolitis: follow-up CT examination

M Akira, T Higashihara, M Sakatani and H Hara
Department of Radiology, National Kinki Chuo Hospital for Chest Disease, Osaka, Japan.

PURPOSE: The authors reviewed serial computed tomographic (CT) scans obtained in 19 patients with diffuse panbronchiolitis (DPB) to evaluate changes in disease pattern over time. MATERIALS AND METHODS: Nineteen patients with DPB were entered into the study. After initial CT examination, 12 patients were randomly assigned to receive long-term low-dose (200 mg three times daily) erythromycin therapy; seven patients received no treatment. RESULTS: Follow-up CT scans revealed that centrilobular areas of high attenuation observed initially had progressed to dilatation of the proximal airway in some patients in the untreated group. In the treated group, the centrilobular and branched linear areas of high attenuation were decreased in number and size, although the airway dilatation and decreased lung attenuation in the peripheral areas remained unchanged or were slightly increased. CONCLUSION: CT scans are valuable in the study of the disease process and response to therapy in DPB.


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