Fig. 2
a Coronal CT image on 3/31/11 showing a calcified left hilar mass with metastatic osteosarcoma biopsy confirmed. b Axial CT image performed on 3/31/11 showing a calcified nodule in the right lower lobe consistent with metastatic disease. c Coronal CT image performed on 12/11/15 shows grossly stable appearance of the calcified left hilar mass. d Axial CT image performed on 12/11/15 shows a grossly stable appearance of the right lower lobe nodule