Table 4.

Differential diagnosis of different viral pneumonia

Virus	Imaging characteristics
MERS-COV	Ground glass lesions in the subpleural and basal portions of the lung parenchyma with areas of consolidation; fibrotic changes can be present after healing
H1N1	Ground glass opacity, interlobular septal thickening, and centrilobular nodules
H7N9	Ground glass opacity and consolidation with air bronchograms and interlobular septal thickening
Human parainfluenza virus	Centrilobular nodules with bronchial wall thickening, findings which differentiate it from other viral infections
Respiratory syncytial virus	Small centrilobular nodules and areas of parenchymal consolidation; asymmetrically distributed in the lungs
Adenovirus pneumonia	Bilateral multifocal ground glass opacities, patchy consolidation in a lobar and/or segmental distribution