Diffuse Cystic Lung Disease at High-Resolution CT

AJR:196,June 2011

Danielle M. Seaman Cristopher A. Meyer Matthew D. Gilman Francis X. McCormack

OBJECTIVE. This article will illustrate and describe the spectrum of diseases associated with air cysts at high-resolution CT (HRCT).

CONCLUSION. HRCT is an important modality in the evaluation of interstitial lung dis­ease to include cystic lung disease. Although most commonly associated with lymphangioleio- myomatosis or Langerhans cell histiocytosis, cystic lung disease is increasingly being recog­nized as a feature of other entities. Awareness of the spectrum of HRCT findings associated with these diseases may help the trained observer narrow the differential diagnosis.