Figure 2. Radiographic evidence of progression at one year from the start of erlotinib treatment.

Left panel is the representative sagittal section image of computed tomography (CT) without contrast of the left hip showing a new lytic lesion at the base of the left greater trochanter measuring 1.4 cm x 1.3 cm. Right panel is the axial section of CT with intravenous contrast of the chest depicting new lung nodules in the right lower lobe consistent with progressive disease.