Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A focal density overlying the spine on the lateral radiograph could represent a small pleural effusion , subsegmental atelectasis , or early consolidation , likely in the medial right base . There is no pneumothorax or pulmonary edema . The cardiomediastinal silhouette is within normal limits . The previously described large , peripherally - calcified splenic cyst appears grossly similar to prior CT .
    OUTPUT:
    
Focal density seen on the lateral radiograph could represent small pleural effusion , subsegmental atelectasis , or early consolidation . Right lateral decubitus radiographs are recommended to evaluate for layering fluid .