Interval development of inhomogeneous opacity in the right mid lung zone, which may represent early infection. There are no other significant changes in cardiopulmonary status, with stable pulmonary vascularity and cardiomegaly. No evidence of pulmonary edema, pneumothorax, or pleural effusions.
Simple pleural effusion (Absent) Cardiomegaly (Present) Edema (Absent) Simple pneumothorax (Absent) Pneumonia (Uncertain)