Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well - expanded and clear . No focal consolidations . Vascular engorgement , but no frank pulmonary edema . There is apparent enlargement of the cardiomediastinal silhouette compared to ___ , however this may be technical . No pleural effusion . No pneumothorax .
    OUTPUT:
    
Vascular engorgement , but no frank pulmonary edema . Cardiomegaly , which may have increased compared to ___ .