Final answer:
On a CXR of neonatal pneumonia, you would see diffuse alveolar infiltrates, which present as areas of increased opacity in the lung fields due to fluid-filled alveoli.
Step-by-step explanation:
On a chest radiograph (CXR) of pneumonia in a neonate, you will typically see diffuse alveolar infiltrates. These appear as areas of increased opacity due to alveoli that are filled with fluid, inhibiting normal gas exchange. The infiltrates can manifest as shadowing or consolidation in the lung fields, which is indicative of pneumonia. While there are multiple findings that can be present on imaging for different lung conditions, option d) Diffuse alveolar infiltrates is the most consistent with neonatal pneumonia. Signs like bilateral hilar adenopathy, reticulonodular opacities, and lung cysts are associated with other pulmonary conditions and are less typical for pneumonia.