Observation on ultrastructure showed where the collagenous fibrils were intact, fibrioblast with active function were found in hypodermatic connective tissues, the basal lamina were intact, the epidermoid cells were well differentiated.

• 超微结构观察结果显示:在胶原纤维完整，上皮下结缔组织内成纤维细胞丰富、能活跃部位，基底膜较完整，相应部位之上皮细胞分化较好。