I'm a 53yo female who has never smoked. I have had 3 thoracic catscans this year and bronchoscopy with cultures/biopsy which was all negative. My most recent catscan shows: impression-Multiple subcentimeter groundglass opacities in both lungs with an upper lobe distribution are nonspecific. Short-term follow-up is suggested to exclude infection. Hypersensitivity pneumonitis or respiratory bronchiolitis interstitial lung disease can have a similar appearance. Findings-Chest: there are multiple subcentimeter groundglass opacities in both upper lobes. Mild fissural nodularity in both major fissures. There are a few groundglass capacities in the anterior aspect of the left lower lobe which also our subcentimeter. No mediastinal or adenopathy. Of course I'm freaking out wondering if this is fatal. Any input would be greatly appreciated since I don't see my lung doc until 10/29/15. Thank you for your time.