Figure 1: (a) Epithelial lining of odontogenic keratocyst showing nuclear hyperchromatism and cellular pleomorphism (H and E, ×400). (b) Epithelial lining of radicular cyst showing dropped shaped rete pegs and severe inflammation within the connective tissue (H and E, ×200). (c) Calcifying odontogenic cyst showing ghost cells and nuclear hyperchromatism in epithelial lining (H and E,) ×100. (d) Dentigerous cyst with thin flattened non-keratinizing epithelial lining showing nuclear hyperchromatism and pleomorphism (H and E,) ×400