Staining sites located in the stratum spinosum of epidermis,reticular dermis and part vessels.Conclusion FADD expression is tightly associated with the development of hypertrophic scars.

• FADD阳性信号主要见于表皮棘层、真皮网状层；以及部分血管.；结论FADD表达与增生性瘢痕演变密切相关