gross appearance
2.CONCLUSION:AHS is similar to HHS in gross appearance,growth characteristics and histological characteristics,so it is an ideal model for HHS.
3.METHODS:Human full thickness skin was transplanted into the nude mice to establish an animal model of HHS. The development of scar proliferation was observed,and the gross appearance and growth characteristics of HHS were recorded,and meanwhile,AHS tissues at different phases were satined with HE and VG,and compared with HHS at the corresponding phases.

