Incisional Biopsy

Histological examination of all cysts with the exception of the marsupialized cyst were similar in morphology.  A cystic structure with uniformly thin, keratinized and corrugated lining epithelium with palisaded basal cell layer and a supporting fibrous connective tissue wall was identified in each specimen.  The lumen was filled with keratin (Figure 6).  The histology of the cyst in the anterior mandible changed after marsupialization; prior to marsupialization, it was non-keratinized and proliferative stratified squamous epithelium lacking the characteristics of typical OKC morphology.

Figure 6. Low power (x100) histology shows a cystic structure with lining epithelium and a supporting fibrous connective tissue wall.  The lining epithelium is uniformly thin and is corrugated and keratinized with palisaded basal cell layer