Here is just a quick summary of what the CT scan showed. The specialist said that it was not a pulmonary sequestration although there is some sort of abnormality in the lungs. The CT scan shows some enlarged bronchials and some cells that appear black on the CT scan so there is also something not normal about them. The specialist said he didn't have a name for this abnormality as it is not something common. The only way to "fix" something like this would be to take it out, and to do that, he would have to take out the whole lower left lobe of the lung, but considering that it has not caused any difficulties for Nena yet, that option seemed a little drastic in his opinion. Should it cause pneumonia, he would be concerned that there would be some lung scarring, possibly damaging other areas of the lung. If she would have several cases of pneumonia, we would probably have to take it out. If she continues healthy like she has been so far, and has no signs of development on follow-up X-rays then we would probably leave it alone. So it sounds like good news. Although part of me would like to have a permanent solution and know that she's "fixed," it's also good to be able to avoid surgery for the moment.