This is lower lung and peripheral predominant ground glass opacity. If you were acutely ill, it may be an infection, likely viral, such as with COVID. If this is more long standing it may represent a more chronic interstitial lung disease (especially something called “nonspecific interstitial pneumonia.” It’s called a pneumonia but it’s not from an infection.) Do you have rheumatoid arthritis or a connective tissue disease?

Hi, what you are referring to is material outside of the patient, likely a blanket covering the patient. It is not clinically relevant.