Figure 13a. NSIP in a 62-year-old man with scleroderma. (a–c) Transverse thin-section CT images show peribronchovascular and peripheral distribution of ground-glass opacity associated with reticular pattern. Marked bilateral lower-lobe volume loss and traction bronchiectasis indicate extensive lung fibrosis. (d) Transverse thin-section CT image obtained 2 years later shows decreased ground-glass opacification but persistent reticular pattern.