Table 7. Summary of the distribution of CD1a-positive Langerhans cells, CD8-positive T lymphocytes, and CD68-positive macrophages.

	Langerhans cell	Other 2 cells	Migration to the epithelium
Oral floor	Evenly, spherical	Rich	Lymphocyte ++, macrophage ±
Lower lip	Evenly, dendritic	Rich	Lymphocyte +, macrophage ±
Conjunctiva	Evenly, dendritic	Very rich	Lymphocyte +, macrophage ±
Anal canal	Concentrated, dendritica)	Few	Lymphocyte -, macrophage -
Penile skin	Concentrated, dendritic	Very rich	Lymphocyte ++, macrophage -

Langerhans cell, CD1a-postivie cell; lymphocyte, CD8-positive cell; macrophage, CD68-posiive cell. Evenly or concentrated: they were evenly distributed along the epithelium or concentrated at the bottom of the skin groove (penile skin) or in finger-like protrusions of the stratum spinosum between papillae (anal canal). ^a)The dendritic cells were not directing toward the epithelial surface but lay in parallel with the epithelial surface.