Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right chest tube is unchanged in positioning compared to prior same day radiograph with side hole close to the lateral intercostal plane . There is a trace right apical pneumothorax . Right basilar opacity is unchanged from prior but improved from radiograph ___ . Mildly prominent pulmonary vasculature is unchanged . Prominent mediastinal silhouette is unchanged , component of which is likely secondary to low inspiratory volume .
    OUTPUT:
    
1 . Trace right apical pneumothorax . 2 . Unchanged right chest tube positioning with side - hole close to the lateral intercostal plane . 3 . Unchanged right basilar atelectasis , however pneumonia is not excluded .