This is only recent Uptown. I saw it on the x-ray report for HBOT, and none of my doctors mentioned it a problem, so I paid it no mind until the pre-op oral surgeon doctor said what's being done about my lungs? Was busy with surgery, recovery since, and start seeing my doctors next week the first being my radiation oncologist, so hopefully I will get some answers, directions. I thought mine to be from surgery last year, pneumonia, and limited activity since.