Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi upright radiograph of the chest demonstrates low lung volumes with resultant bronchovascular crowding . There is increased opacification of the right base which likely represents pneumonia . The left lung is essentially clear . There is a probable small right - sided pleural effusion . The cardiomediastinal and hilar contours are unchanged . There is no pneumothorax . The tracheostomy tube ends 2 cm from the carina . Right - sided PICC ends in the distal SVC .
    OUTPUT:
    
Increased opacification of the right base likely represents pneumonia .