Endoscopic ultrasonography diagnosis of gastric glomus tumors

Figure 3 Photomicrograph of the tumor cells. A: Clusters of uniform, round cells around dilated blood vessels, cytoplasm was transparent or reddish, and the cells had no atypia or mitotic appearance; B: Positive smooth muscle actin staining of tumor cells, which shows a brown cytoplasmic stain; C: Positive h-caldesmon staining of tumor cells, which shows a brown cytoplasmic stain; D: Positive vimentin staining of tumor cells, which shows a brown cytoplasmic stain. Hematoxylin-eosin; original magnification: 200 ×.