Fig. 2

Histopathologic findings. a Photomicrograph showing the proliferation of granulation tissue with a large amount of inflammatory cell infiltration (hematoxylin-eosin, × 100; insets × 400). b Refractile foreign fibers noted in edematous connective tissue containing inflammatory cells (hematoxylin-eosin, × 40; insets × 400). c-d Synthetic fibers with relatively uniform size or central black granules (c hematoxylin–eosin, × 40; insets × 200. d hematoxylin–eosin, × 200; insets × 400). e The synthetic fibers are rhombic, pink, and surrounded by histiocytic giant cells (hematoxylin-eosin, × 40; insets × 400). f The synthetic fibers are pink, double spindle, translucent, and surrounded by histiocytic giant cells (hematoxylin-eosin, × 40; insets × 400)