Treatment

The treatment was delayed for about six months to first care for the severe aortic coarctation, which was stented. The area was treated with extensive enucleation and curettage. Coronoidectomy and extraction of teeth #s 30 & 31 were performed to allow good visualization into the proximal portion of the lesion. If the lesion recurs, the area will be curetted again and the patient placed on interferon therapy.

Incisional Biopsy

The incisional biopsy demonstrated multiple fragments of decalcified hard and soft tissue made up of a benign fibro-osseous lesion (Figures 2 and 3). It is composed of irregularly shaped and woven-type bony trabeculae surrounded by cellular fibrous connective tissue stroma. The bony trabeculae are of variable shapes and sizes; some show significant osteoblastic rimming. In focal areas, the connective tissue stroma has clusters of multinucleated giant cells (Figure 4).

Figure 2 Low scanning power (x40) histology shows a benign fibro-osseous type lesion composed of irregularly shaped and woven-type bony trabeculae surrounded by cellular fibrous connective tissue stroma.

Figure 3 Higher power (x200) histology shows woven bony trabeculae exhibiting significant osteoblastic rimming.

Figure 4 Higher power (x200) histology shows cellular fibrous connective tissue with clusters of multinucleated giant cells.