Granulomatosis with polyangiitis presenting as high fever with diffuse alveolar hemorrhage and otitis media: A case report

Figure 3 Results of bronchoscopic biopsy. A: Biopsies revealed local granulomatous structure; peripheral fibrous hyperplasia; lymphocyte, plasma cell and neutrophil infiltration (Papanicolaou stain, 20 ×); B: By microscopy, columnar epithelial cells and individual lymphocytes were seen, and no heterotypic cells were found (hematoxylin and eosin stain, 20 ×).