Incisional and excisional biopsy

The histologic examination revealed a piece of decalcified hard and soft tissue (Fig 2).  The latter represented the overlying mucosa with surface epithelium and supporting connective tissue.  The bulk of the specimen was made up of an underlying mass of bone (Fig 3) with small spaces containing loose and vascular connective tissue (Fig 4).  The bone was lamellar in type with Haversian systems (Fig 4) with viable osteocytes and reversal lines.

Figure 2. H & E stained section at 20X magnification (low scanning) demonstrating a mass of lamellar bone covered by a thin mucosa.  The surface epithelium is stretched and lacks filliform papillae.

 

Figure 3. H & E stained section at 100X magnification (low power) demonstrating a mass of lamellar bone covered by a thin mucosa with stretched surface epithelium.

 

Figure 4. H & E stained section at 400X magnification (high power) demonstrating a mass of lamellar bone with Haversian systems containing viable osteocytes and small spaces with loose and vascular connective tissue.