Excisional Biopsy

The excisional biopsy revealed multiple pieces of soft tissue made up of a mass of vascular granulation tissue covered by intact stratified squamous epithelium (Figure 3).  The granulation tissue contained many congested and dilated blood vessels surrounded by proliferative endothelial cells and young fibroblasts (Figures 4 & 5).

Figure 3. Scanning power (x20) histology shows an exophytic mass of vascular granulation tissue covered by intact stratified squamous epithelium.

Figure 4. Low power (x100) histology shows a mass of vascular granulation tissue consistent with a pyogenic granuloma.

 

Figure 5. High power (x400) histology shows dilated and congested blood vessels of variable shapes and sizes lined by one layer of flat endothelial cells.