Preschooler who is HIV positive with respiratory distress

CXR of lymphoid interstitial pneumonia
CXR AP and lateral (above) show a diffuse, symmetrical, nodular infiltrate in the lungs bilaterally without hilar or mediastinal adenopathy. CXR AP obtained a year later (below) shows the nodular infiltrate has decreased slightly in the interval.

The diagnosis was lymphoid interstitial pneumonia.