Fig. 2

Comparisons of surface and internal structure between the rt-PA thrombus (a, c, e) and the non-rtPA thrombus (b, d, f) (TEM). The red arrow indicates the surface of the thrombus, the yellow arrow points to the inside of the thrombus, the blue points to platelets, and the white points to neutrophils. a shows that the thrombus surface is denser than the internal structure. b shows that the surface and internal structure of thrombus are similar in density. c, d, e, f show swollen platelets and mitochondria in both thrombi, which contained many vacuolar particles, spilled cellular contents, and indistinct structures