Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a right - sided Port - A - Cath catheter . The tip is not well visualized , but may overlie the lower right atrium as on the prior film . There are low inspiratory volumes , with patchy increased densities in both lungs . The patient has known pulmonary carcinomatosis , though superimposed processes would be difficult to exclude on this radiograph . There are pigtail catheters at both lung bases . On the left , there is a pneumothorax at the left lung base . On the right , no definite pneumothorax is detected , though a small right pleural effusion is present . The cardiac cardiomediastinal silhouette is not well delineated , but is probably unchanged . A stent overlies the mid abdomen and may represent a CBD stent .
    OUTPUT:
    
Doubt significant change compared with 1 day earlier . The pneumothorax at the left lung base is unchanged .