Correct!
1. The chest radiograph shows a solitary pulmonary nodule

The frontal chest radiograph shows a borderline-to-mildly enlarged heart with a tortuous and possibly dilated ascending aorta (assessment is compromised by the left anterior oblique positioning of the chest radiograph). A circumscribed solitary pulmonary nodule is faintly visible over the peripheral right mid-lung (Figure 2).

Figure 2. A circumscribed solitary pulmonary nodule (arrow) is faintly visible over the peripheral right mid-lung.

No convincing evidence of airway thickening or bronchiectasis is evident, and the lung volumes appear normal. No features of pulmonary fibrosis are seen. A small nodular, or miliary, pattern, is not present. There is no evidence of either cavitary lung nodule or consolidation.

Which of the following represents the next, most appropriate step for the assessment of the findings at chest radiography? (Click on the correct answer to proceed to the next panel)

  1. 18FDG-PET scan
  2. Bilateral, frontal shallow (5°) oblique images to distinguish true lung nodule from artifact or a chest wall lesion
  3. Obtaining prior thoracic imaging studies for comparison to determine if the solitary nodule is stable over time
  4. Thoracic CT using a nodule enhancement protocol
  5. Unenhanced thoracic CT

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