Figure 5.

Vascular endothelial growth factor receptor 1 (VEGFR1), vascular endothelial growth factor receptor 2 (VEGFR2), and laminin receptor (LR) are mainly expressed in endothelial cells (EC). Immunofluorescence staining of VEGFR1, VEGFR2, and LR in infant hemangioma tissue sections. The image showed LR in part A, VEGFR1 in part B and VEGFR2 in part C, these three receptors were indicated in green. EC are stained with CD31 (red), and nuclei are stained with DAPI (blue). Magnification: 400×. White arrows indicate merged EC; red arrows indicate some of the non‐hemangioma‐derived endothelial cells