Figure 19.
Nonspecific interstitial pneumonia (NSIP). An axial CT scan was obtained in a 67-year-old man who was morbidly obese and had progressive dyspnea. The CT scan through the lung bases shows a combination of thick-walled peripheral bronchi associated with poorly defined ground-glass attenuation and perilobular thickening, especially in the left base (arrow), which are findings suggestive of NSIP. Surgical lung biopsy findings were consistent with organizing pneumonia.