Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographdemonstrates hypoinflated lungs . Bilateral lower lobe heterogeneous opacities are present . No pleural effusion or pneumothorax . On lateral view there is mild compression of the distal trachea from likely central lymphadenopathy . Heart size and hila are unremarkable .
    OUTPUT:
    
1 . Findings worrisome for pneumonia , atypical infection and possibly opportunistic infection especially if patient is immunocompromised . 2 . Likely central lymphadenopathy .