Fig. 3From: Pseudosarcomatous myofibroblastic proliferation of the appendix with an abdominal abscess due to diverticulum perforation: a case reportHistopathological findings. a Histopathological examination using hematoxylin and eosin staining revealed spindle cell proliferation and significant inflammatory cell infiltration, magnification × 200. b, c Immunohistochemistry showed that the spindle-shaped cells were strongly positive for vimentin (b) and smooth muscle actin (SMA) (c), magnification × 200Back to article page