That
is a good thing. But obviously there
is something strange going on there. I think the best thing
is to let the specialist follow your friends progress. Over time the doctor will be able to understand better what is going on, especially if the patient presents atypical for certain diseases looked into. You don't mention if your friend has any symptoms that he/she may be suffering from, such as shortness of breath, cough, chest tightness or wheeze?