Correct!
1. The chest radiograph appears essentially unchanged from the previous radiograph
The chest radiograph appears essentially unchanged from 4 months prior (Figure 1); the ground-glass opacity and consolidation, with underlying liner opacity and reticulation, as well as the distribution of abnormalities, is largely stable. No cystic change or cavitation is present. Discrete pulmonary nodules are not seen.
In light of the time course now established for the imaging findings, which of the following is an appropriate consideration among the differential diagnostic possibilities for the appearance of the patient’s imaging studies?