Correct!
3. Unenhanced chest CT shows multifocal consolidation, ground-glass opacity

The unenhanced chest CT shows patchy, nodular areas of ground-glass opacity in the left upper lobe associated with lingular consolidation and a small left pleural effusion. There is no evidence of significant enlargement of either peribronchial or mediastinal lymph nodes nor is there bronchiectasis. Small nodules are not present and there is no evidence of pneumothorax.

The patient underwent frontal and lateral chest radiography (Figure 3) 3 weeks after for comparison to the presentation chest radiograph (Figure 1) performed at an outside institution.

Figure 3. Frontal and lateral chest radiography 3 weeks following presentation and after doxycycline therapy.

Which of the following represents an appropriate interpretation of her frontal chest radiograph? (Click on the correct answer to be directed to page 4 of 10 pages)

1. Extend the course of antibiotics and switch to a more broad-spectrum therapy
2. Testing for fungal infection, such as coccidioidomycosis
3. Obtain CT pulmonary angiography for possible pulmonary embolism
4. Obtain follow up chest radiography in 2 weeks following a new antibiotic regimen
5. More than one of the above

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