Intraosseous hemangioma of the jaws is a rare disease as compared to other skeletal and soft tissue hemangiomas. Preoperative differential diagnosis is critical in that severe bleeding can cause both intra and postoperative complications. Surgical excision of the intraosseous hemangioma can be performed with the use of steroid injection or sclerosing agent into the lesion before the surgical approach. However, even with the embolization of the blood vessels before surgical excision, there still exists a risk of massive hemorrhage during the procedure for the larger lesions. In this report, we present a case of which first tentatively diagnosed as ameloblastoma thus the use of sclerosing agents or vascular embolization was not considered before the surgery. Although there was a strong tendency to intraoperative bleeding, delicate hemostasis was achieved with surgicel(Ethicon SARL, Johnson and Johnson, Switzerland), bosmin(Jeil Pharm, Republic of Korea), and electrocautery. The final histopathological examination confirmed an intraosseous hemangioma of the mandible. The patient is undertaken for follow-up period of 1 year and the prognosis is under favorable condition.

Ⅰ. INTRODUCTION
Ⅱ. CASE REPORT
Ⅲ. DISCUSSION
Ⅳ. CONCLUSION
REFERENCES

• 장훈(부산대학교 치의학전문대학원 구강악안면외과학교실) | Hun Jang (Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University)
• 유미현(부산대학교 치의학전문대학원 구강병리학교실/치의생명과학 연구소) | Mi-Heon Ryu (Department of Oral Pathology, School of Dentistry, Pusan National University/Dental and Life Science Institute, Pusan National University)
• 황대석(부산대학교 치의학전문대학원 구강악안면외과학교실/치의생명과학 연구소) | Dae-Seok Hwang (Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University/Dental and Life Science Institute, Pusan National University) Corresponding author