Bump on the road
"He's developed a pneumothorax..."
An airleak into the cavity between the lungs and the chest wall. For some, this can be life-threatening (he's stable).
He spent a night in the hospital yesterday, and will probably spend another night tonight before they discharge him.
Feel free to pop by his Caring Bridge site to drop him some words of encouragement. As this really isn't my story to tell, I shall refrain from elaborating more on my blog.