局部切除一周后皮肤愈合部位活检显示：皮肤表面已经有再生的上皮，其下部为含有毛细血管和成纤维细胞的肉芽组织，一个月后转变为胶原纤维瘢痕。
This is a healing biopsy site on the skin seen a week following the excision, The skin surface has re-epithelialized, and below this is granulation tissue with small capillaries and fibroblasts forming collagen. After a month, just a small collagenous scar will remain.