Presentation
Fever, shortness of breath, sweats, cough, and left chest pain.
Patient Data

Rounded opacity is adjacent to the left hilum.
Air bronchograms traverse the lesion, features are typical of round pneumonia.

Follow-up X-ray after 6 days of treatment demonstrating rapid improvement.
Case Discussion
These features are consistent with round pneumonia.
Round pneumonia is a type of pneumonia usually only seen in pediatric patients. They are well defined, rounded opacities that represent regions of infected consolidation, it often indicates streptococcal pneumonia.
Round pneumonias are well-circumscribed parenchymal opacities, they tend to have irregular margins. They most commonly occur in superior segments of lower lobes and in the majority of cases (98%), they are solitary. Air bronchograms are often present.