Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are mildly hypoinflated with crowding of vasculature . Bibasilar opacities are only seen on frontal projection . No pleural effusion or pneumothorax . Mediastinal contour and hila are unremarkable . The trachea is slightly deviated rightward suggesting an enlarged left thyroid lobe .
    OUTPUT:
    
1 . Bibasilar opacities are most consistent with atelectasis , however pneumonia can not be excluded in the appropriate clinical setting . 2 . Mild rightwards tracheal deviation suggests an enlarged left thyroid lobe . Recommend non urgent thyroid ultrasound for further evaluation .