[Skip to Navigation]
January 1989

Maxillary Ameloblastoma: A Potentially Lethal Neoplasm

Author Affiliations

From the Division of Head and Neck Surgery, UCLA School of Medicine (Drs Bredenkamp, Zimmerman, and Mickel); Los Angeles County–Olive View Medical Center, Sylmar, Calif (Dr Zimmerman); and Veterans Administration Medical Center–West Los Angeles (Dr Mickel).

Arch Otolaryngol Head Neck Surg. 1989;115(1):99-104. doi:10.1001/archotol.1989.01860250101036

• Ameloblastomas are benign tumors derived from the odontogenic apparatus. Of these tumors, 80% originate in the mandible, while 20% originate in the maxilla. Six cases of maxillary ameloblastoma treated at the UCLA hospitals are presented; four of these cases showed extensive and destructive tumor growth involving vital structures, including the orbit, base of skull, and parasellar structures. Two of four patients with extensive disease died of their tumors, one, with extensive involvement of the base of the skull, became unavailable for follow-up, and, one year after diagnosis, one is alive with middle cranial fossa disease. A review of the medical literature provides further evidence of the locally aggressive behavior and potentially lethal nature of this tumor. No effective treatment has evolved for extensive ameloblastomas of the maxilla that have invaded surrounding vital structures. When tumor-free surgical margins are not possible, radiation therapy may offer palliation of disease.

(Arch Otolaryngol Head Neck Surg 1989;115:99-104)

Add or change institution