What is included in your differential diagnosis?
An infective process could lead to this picture with abscess formation in the chest. Other differentials could include tuberculosis or lung mass.
Are there any other abnormalities on this chest film?
Yes - there is a healed right clavicle fracture.
Right upper zone consolidation with cavitating features and gas-fluid level.
No abnormalities in left lung. Cardiac silhouette normal.