Thank you hazelrunpack,
After everything she went through with the tick disease I was hoping her senior years would be free of any major ailments. Still no results back on the needle biopsy. I've started giving her krill oil and turmeric to see if that will reduce the inflammation and help her breathing. She is on doxycycline to address the pneumonia and has stopped wheezing so that has helped but the mass makes her breathing very noisy and she doesn't sleep very well. I don't think she is in pain because she seems happy - still plays with her toys and goes on walks but gets winded easily. She must also feel pressure where the mass is as it is the size of a golf ball.