A chest radiograph showed bilateral upper lobe infiltrates and a diffuse reticulonodular pattern
in the middle and lower lung fields (Figure 1).
Cystic changes are commonly superimposed on a background of reticulonodular pattern
as they become more prominent in the later stages of disease.
Two showed reticulonodular pattern
and one had normal pulmonary parenchyma with mediastinal widening.
The chest X ray may show an alveolar process, reticulonodular pattern
, and evidence of fibrosis.
The radiograph showed a diffuse reticulonodular pattern
worse in the upper lung zones with some pleural thickening noted on the right.