Photomicrographs of odontogenic cysts lined by an epithelium with plaque-like thickenings. (A) Plaque-like thickenings within the cystic epithelium of a LPC (HE ×145). (B) Whorled plaque-like thickenings in a LPC (HE ×400). (C) Multicystic spaces in a BOC (HE ×65). (D) Necrotic-filled multicystic spaces with plaque-like thickenings in a BOC (HE ×100). (E) Inconspicuous very thin epithelium within the gingival chorion in a gingival cyst (HE ×75). (F) Cytokeratin marker helps to highlight the thin epithelium of a gingival cyst (HE ×75). (G) Glandular structures within the epithelium of a GOC (HE ×200). (H) Secretions within the true glandular spaces of a GOC (HE ×400).