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Ultrastructural identification of Langerhans cells in normal swine epidermis.

Authors
  • J Romano
  • L Balaguer
Publication Date
Dec 01, 1991
Source
PMC
Keywords
License
Unknown

Abstract

Langerhans cells of the epidermis of 6-month-old white crossbred farm pigs were identified by electron microscopy. Ultrastructurally they were similar to those described in other mammals. They were present in basal and suprabasal layers and were characterised by a lobulated nucleus and an electrolucent cytoplasm with occasional dendritic processes, and the absence of tonofilaments and specialised unions with surrounding keratinocytes. They were specifically identified by the presence of characteristic rod or racquet-shaped intracytoplasmic granules. Intraepidermal clear cells without specific granules were present, although no melanocytes were observed. This is the first report of the presence of Birbeck granules in porcine Langerhans cells.

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