<s>[INST] I know a child who has a very large jawbone. It is a student I taught whose jaw was 4 or 5 times as large as a normal one. Is this some form of elephantitus? What causes this and what can be done about it? Is surgery an option? The boy s teeth are constantly exposed and are rotting with decay and odor. [/INST] Hello, It can be a proganathism. Other possibilities like admantinoma also be ruled out. Consult a maxillofacial surgeon and get evaluated. A CT scan is required to assess the severity. Surgical correction is possible in most of the cases. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr. Shinas Hussain </s>