Correct!
1. The enhanced thoracic CT shows a heterogeneously enhancing right base thoracic lesion located within the posterior right costophrenic sulcus.
The enhanced thoracic CT shows the heterogeneously enhancing right base mass, again with a broad contact with the right posterior chest wall, located within the right posterior costophrenic sulcus, but without other visible abnormalities or locally aggressive behavior. The mass appears very similar to that seen at the prior CT and MR examinations- the lesion has not “changed shape” or shifted positions since those prior studies. The right thoracic lesion is vascularized, but no aberrant vessel supplying the mass, either from the descending thoracic aorta or abdominal aorta, is seen. The mass is heterogeneous, with areas of relatively lower attenuation mixed with areas of hyperattenuating enhancement, but no foci of fat or gas are present.
Which of the following represents the next most appropriate step for the evaluation of this patient? (Click on the correct answer to proceed to the seventh of 9 panels)