A 3-year-old boy has had a cough, headache, and slight fever for 5 days. He is now having increasing respiratory difficulty. On physical examination, his temperature is 37.8° C, pulse is 81/min, respirations are 25/min, and blood pressure is 90/55 mm Hg. On auscultation, there are inspiratory crackles, but no dullness to percussion or tympany. Respiratory syncytial virus is isolated from a sputum sample. Which of the following chest radiographic patterns is most likely to be present?