FINDINGS:
As compared to the previous examination, the lung volumes have
 decreased.  In addition, there is a newly appearing parenchymal opacity at the
 right lung base, the opacity could be atelectatic, but the presence of early
 pneumonia cannot be excluded.  At the time of dictation and observation, 8:21
 a.m., on , the referring physician, . , was paged for
 notification.  Otherwise, the radiograph is unremarkable.  There is no
 evidence of cardiomegaly or pulmonary edema.  No pleural effusions.  Normal
 hilar and mediastinal structures.