Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . Comparison is made with the next preceding similar study of ___ . The heart size is unchanged , the configuration demonstrating a prominence of the left ventricular contour , but no other significant abnormalities are present . Thoracic aorta unremarkable . The pulmonary vasculature is not congested . There is no evidence of a small amount of right - sided pleural effusion blunting the right lateral pleural sinus and extending posteriorly as identified on the lateral view . Some linear parenchymal densities on the right lung base are consistent with plate atelectases . No conclusive evidence for pleural effusion in left hemithorax . No other new parenchymal infiltrates are present . No pneumothorax is seen in the apical area . Position of previously described orthopedic hardware in upper lumbar spine , unchanged . Moderate gas distention of large bowel is noted .
    OUTPUT:
    
Development of right - sided pleural effusion since the next preceding study of ___ . As this patient has a history of ovarian carcinoma , the possibility of metastatic process must be considered .