Conclusion There is enhancedexpression of VEGF and PCNA in basal cells in keloids and hypertrophic scars, which maytake a role in the formation of abnormal scars.

• 结论瘢痕疙瘩和增殖性瘢痕表皮基底层的角朊细胞大量表达VEGF和PCNA可能与异常疤痕的形成密切相关。