Lung nodules

I am concerned about recent ct scan and would like your opinion if you feel this is an inflammatory issue or neoplastic issue.  I had pneumonia in July of 2006 and had 2 ct scans.  There was a 4 mm nodular opacity in the right lower lung.  A ct scan of 10/06 showed linear scarring in both lungs but no mention of nodules.  A chest xray in 4/2007 showed a round density in the right perihilar region.  I became ill in November of this year with shortness of breath and a chest xray revealed 2 x 1 cm nodule right middle lobe/ patchy consolidation both lower lobes and perihilar nodule right lower lobe.  A ct scan on 11/10 indicated poorly defined ground glass opacities seen in upper right, lower left lobe and upper left with a focal poorly defined nodule with foci of central lucency in the right lower lobe.  This has irregular margins and measures 1.4 x 1.2 cm axially.