Figure 8 | Modern Pathology

Figure 8

From: Smoking-related interstitial fibrosis (SRIF), pathogenesis and treatment of usual interstitial pneumonia (UIP), and transbronchial biopsy in UIP

Figure 8

Fibroblast focus. (a) Low magnification shows lightly staining fibroblast focus that is easily visible within background collagen in an area of honey-comb change. (b) Higher magnification showing spindle-shaped fibroblasts and myofibroblasts within lightly staining stroma. The cellular area contrasts sharply with adjacent collagen deposition (top), and the luminal surface is covered by alveolar epithelial lining cells.

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