Fig. 2From: Radiolucent lesions of the mandible: a pattern-based approach to diagnosisResidual cyst. a OPT. Unilocular well-defined lesion with sclerotic borders (arrow) and missing tooth 36 above. b Histology (haematoxylin-eosin stain, original magnification 20×): non-keratinised stratified squamous epithelium (arrow) with mild inflammationBack to article page