Figure 1: A. Coronal CT image at time of diagnosis of biopsy proven LIP (lymphocytic interstitial pneumonia) showed multiple bilateral thin-walled cysts. B. Coronal image from a follow-up CT four years after the CT in Figure 1A, showed unchanged appearance of LIP. Atypical appearance of newly developed poorly defined ground glass nodules in the bilateral upper lobes with air bronchograms raised concern for MALT lymphoma.