PDPN and odontogenic cyst: Moreover, in a study by Okamoto et al. [ 22] on OKC, orthokeratinized odontogenic cyst, and DC, immunohistochemical expression of podoplanin were detected in the cytoplasm and cell membrane of the majority of cells in the suprabasal and basal layers, as well as peripheral cells of satellite cysts in OKC connective tissue.