Langerhans cells and indeterminate cells were studied in seven cases of human normal epidermidesy the use of two kinds of monoclonal antibodies,anti-Leu-6 and anti-la,and ABC immunohistochemical techniques.

• 应用单抗Leu-6和Ia(HLA-DR)以免疫组化ABC法对7例正常表皮内郎格罕氏细胞和未定类细胞的比较观察；发现Leu-6(+)细胞与Ia(+)细胞数量比为2:1(P<0.；001)。