Thermal Response of In Vivo Human Skin to Fractional Radiofrequency Microneedle Device

Figure 3

Demonstration of tissue response following treatment. (a) The inflammatory cells are found within 24 hours around RFTZs at 1 day after treatment. (b) Three days. (c) One week. (H&E stain; original magnifications: 10x.)

(a)

(b)

(c)