Severe Nonspecific Interstitial Pneumonia (NSIP) in an Adolescent

Figure 5

(a) Photomicrograph of the wedge biopsy from the lower lobe showing interstitial lymphocytic alveolar infiltrates and adjacent interstitial fibrosis and peribronchiolar metaplasia (hematoxylin and eosin 20x). (b) The lower lobe wedge biopsy also showed areas with mild, diffuse interstitial fibrosis characteristic of fibrotic nonspecific interstitial pneumonia (NSIP) pattern of fibrosis (hematoxylin and eosin 20x). (c) The wedge biopsies showed only focal areas of organizing pneumonia with early intraalveolar fibrosis involving less than 10% of the tissues (hematoxylin and eosin 20x). (d) Foci of organizing pneumonia (hematoxylin and eosin 20x).

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(b)

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