Distribution of ATPase-positive Langerhans cells in normal adult human skin

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Abstract
The distribution of ATPase-positive Langerhans cells (LC) was investigated in 117 specimens of normal adult human skin and mucosa taken from different areas of the body. Although there were significant variations in the numbers of LC in each area examined, skin from the face and neck contained the highest density of cells (976±30.93/mm2). The densities of LC in trunk skin (740±28.97/mm2), scalp (693±69.56/mm2) and arm or leg skin (640±40.95/mm2) were similar. Buccal mucosa had significantly fewer LC (567±42.94/mm2) than trunk skin, and sacrococcyx skin and palm and sole skin displayed the smallest number of these cells (267±56.14/mm2 and, 189±19.15/mm2 respectively). No ATPase-positive LC were detected in the centre of two corneal specimens.