title: Langerhans cells in odontogenic cysts. A retrospective study based on 142 cases.
abstract: Dendritic cells with the ultrastructural and immunocytochemical characteristics of Langerhans cells are commonly identified in lymphoid organs and in keratinized and non-keratinized epithelia, such as oral mucosa. These types of cells were previously described in the epithelial wall of periapical odontogenic cysts. S-100 protein positive cells were demonstrated immunocytochemically in all of our 142 cases of odontogenic cysts (32 developmental cysts; 110 inflammatory cysts). Their tropism for squamous epithelia may explain their presence in the epithelial wall of odontogenic cysts. Their number is not always correlated with an inflammatory condition.
mesh_terms: D004848:Epithelium / Q000378:metabolism / Q000473:pathology; D006801:Humans; D007150:Immunohistochemistry; D007801:Langerhans Cells / Q000378:metabolism / Q000473:pathology*; D009807:Odontogenic Cysts / Q000378:metabolism / Q000473:pathology*; D012189:Retrospective Studies; D009418:S100 Proteins / Q000378:metabolism
chemical_list: D009418:S100 Proteins