Fig. 1From: Estrogen is involved in hemangioma regression associated with mast cellsImmunostaining for Glut-1, E2, tryptase and ER-a in IH. a All IH specimens were positive for GLUT-1, which was localized in the cytoplasm of IH endothelial cells (IHC, × 100). Large numbers of tryptase (b), ER-a (c), and E2 (d) positive cells were observed in all IH specimens, specifically in the cytoplasm and nucleus of MCs, but not in IH endothelial cells (IHC, × 400)Back to article page