Correct!
2. Empyema
Empyema is not a correct choice. Empyemas typically appear as somewhat low attenuation, fluid density, and may show gas as well as visceral pleural thickening; these features are lacking. Additionally, the infectious lung parenchyma source- the typical antecedent to empyema- is often visible and no such parenchymal consolidation is present. The right posterior chest lesion in this patient shows internal vascularity which would be lacking within a pleural fluid collection. The other choices are neoplastic and may present as a solid enhancing lesion arising from the extraparenchymal soft tissues of the chest, and are therefore correct choices.
Which of the following represents an appropriate step for the evaluation of this patient? (click on the correct answer to be directed to the eighth of 11 pages)