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4. Comparison to previous chest radiography shows the right lung findings are new

The previous chest radiograph (Figure 2) shows normal findings. The right lung opacity detected at presentation imaging (Figure 1) is new; no nodule or other abnormality was present in this region previously. The left lung was previously clear and therefore no evidence of migratory opacities is seen).

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 fith on nine panels)

  1. 68Ga-citrate scintigraphy
  2. 99mTc-MAA ventilation-perfusion scintigraphy
  3. Decubitus chest radiography
  4. Thoracic MRI
  5. Treatment for presumed community-acquired pneumonia with imaging follow up to show resolution

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