Incisional and excisional biopsy

The decalcified specimen revealed multiple tooth-like structures (Fig 3) surrounded by a dental follicle with epithelial lining (Fig 4).  The tooth-like structures were for the most part coalesced and are made up of dentin, enamel matrix (Fig 5), cementum and dental pulp. 

Figure 3.Low power (x100) histology shows a mass of hard and soft tissue made up of tooth-like structures made up of dentin, enamel matrix, pulp and dental follicle.    

Figure 4. Higher power (x200) histology shows a mass of hard and soft tissue made up of tooth-like structures surrounded by a dental follicle.  The latter is lined by epithelium and supported by a myxoid connective tissue wall.

Figure 5. High power (x400) histology shows enamel matrix with the fish-scale appearance.