Persistent blunting of the left costophrenic angle with pleural thickening versus a small amount of pleural fluid, unchanged from the prior exam. The lungs are clear without evidence of pulmonary edema, pneumothorax, or focal consolidation. Mediastinal, hilar, and cardiac contours are within normal limits. Osseous structures appear unremarkable.
Pleural scarring (Uncertain) Simple pleural effusion (Uncertain)