Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post removal of a left - sided internal jugular central venous line . A ventriculoperitoneal shunt is incompletely imaged , unchanged in appearance . The patient is status post tracheostomy with the tip of the tracheostomy tube terminating approximately 4 .0 cm above the level of the carina . Lung volumes remain low with crowding of the bronchovascular structures . There is persistent mild cardiomegaly and central pulmonary vascular congestion . Bibasilar atelectasis , left greater than right , is slightly improved from prior examination . The upper lungs are grossly clear without lobar consolidation or pneumothorax . No large pleural effusion is present
    OUTPUT:
    
Persistent mild cardiomegaly and central pulmonary vascular congestion , slightly improved from the prior examination . Bibasilar atelectasis , also slightly improved .