Fig. 5

A–D vascular endothelial cells of hemorrhagic MMD (red arrow) are long spindle shape, complete cell membrane, irregular nucleus (yellow arrow), heterochromatin border.With the Suzuki stage, endothelial cells became pyknosis and necrosis increased; E–H the internal elastic lamina (red arrow) in hemorrhagic MMD was wavy, and the thinning and fracture (yellow arrow) worsened with the progression of Suzuki stage.(A and E:Suzuki II stage; B and F:Suzuki III stage; C and G:Suzuki IV stage; D and H: Suzuki V stage ).