57 yo F with 44 yr smoking habit. Hx crohns disease 2obstructions, Hep C 2yrs interferon cleared,pernicious anemia, emphysema, copd,diabetes, asthma, fem fem bypass ARDS 1989. Started watching CT scans q 6 mos 2006. 2007 groung glass opacites throughout both lungs.6mm nodule L costophrenic angle, LLL R lung 5mm, 2mm in periphery of the RUL,(2) 4mm in middle lobe.Pretracheal largest measures 17x12mm .2007 No change since 06. 2008 one new small nodule.Dr not worried. I had surgery for bowel obstruction 4/08. In Icu 6 days on 02. On 02 x2 weeks at home. Had Chest xray about 3 weeks ago.Breathing worse, SOB at rest and not, Sats 82 with walking, Back on 02. Call about xray. Abnormality from other xrays.CT scan ordered. Called next day they want me to have a liver biopsy. New node RUL 11mm and some of the other nodes had grown.(no specifics) B/C of my hx, emphysema etc voiced concerns about needle biopsy., also what about PET scan or sputum cytology 1st. They don't think pet scans are helpful. I need a biopsy and need it now.I am very scared especially since I can hardly breathe. Afraid with empmhysema my lung may collapse. Afraid of procedure in general. Any opinion. What does this sound like? Are Pet scans useless? Would you have bx with my med. hx? Any information would be greatly appreciated. Thank you so much.