摘要用扫描电镜观察盘状红斑狼疮、扁平苔藓及正常皮肤的表皮真皮连接处及基底膜.正常皮肤真皮乳头呈圆柱形,乳头表面及乳头间峡谷区有波纹状基底膜覆盖.盘状红斑狼疮真皮乳头平坦,有的呈尖顶形,乳头高低悬殊,基底膜粗糙不平,方向杂乱;真皮乳头间区域可见较多孔穴,为淋巴细胞通道.而扁平苔藓真皮乳头圆柱形或不规则形基底膜粗糙,有的乳头顶部光滑,有较少的孔穴.在表皮真皮连接处,这两种病有明显区别.

abstractsThe epirlernal-dermal junction(EDJ) and cutaneaus basal lamina(BL) in discoid lupus erythematosus(DLE),lichen planes(LP) and normal skin were observed by scanning electron microscopy.In normal skin the dermal papillae were cylinder-shaped in good order.Dermal papillae and valleys were covered by corrugated basal lamina.In DLE the papillae were flattened and some were peak-shaped in different heights.The appearance of BL showed coarseness and disordered orientation.More hale formations allowing lymphocytes passage were located in interpapillary zones.In LPdermal papillae,cylinder or irregular shaped,were covered by coarse corrugations.The tops of some papillae were smooth.Less hole formations were seen.This report indicated that marked differetiation of EDJ was observed between DLE and LP.