Density and morphology of Langerhans cells in basal cell carcinomas of the face and trunk

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Abstract
We investigated the density and morphology of Langerhans cells in epidermal sheets of basal cell carcinomas in chronically sun-exposed skin (face) and less exposed skin (trunk) of 65 patients. Langerhans cells in perilesional and control skin at the same anatomical sites as the tumours were also examined. Two markers (ATPase and OKT6) were used in a parallel fashion to identify Langerhans cells. The density of the cells was reduced, and their morphology was changed in epidermis overlying tumours of both the face and trunk. These alterations were confined to tumour areas, as Langerhans cells in perilesional skin were normal when compared with control skin at both anatomical sites. Results with both markers were the same.

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