Case Report

Metastasizing Malignant Granular Cell Tumor (Abrikossoff Tumor) of the Anterior Abdominal Wall, with Prolonged Survival

Figure 2

(a) Tumor cells and intervening stromal cells in connective tissue between tumor nests are positive for vimentin; x20
(b) Tumor cells are strongly positive for S100 protein; x20
(c) Tumor cells are strongly positive for CD68; x20
(d) Ki-67 stain featuring scattered positive nuclear staining in 4% of tumor cells; x40