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Gregory A. Ator, MD; Elliot Abemayor, MD, PhD; Robert B. Lufkin, MD; William N. Hanafee, MD; Paul H. Ward, MD

Arch Otolaryngol Head Neck Surg. 1990;116(4):454-459.

Abstract
• Evaluating the extent of tumor invasion of the mandible is clinically important in the management of mandibular tumors. Conventional imaging studies including panoramic radiography, bone scans, and computed tomography, as well as clinical evaluation can be unreliable in defining the extent of neoplastic marrow invasion. This study presents the initial UCLA, Los Angeles, Calif, experience with magnetic resonance imaging in evaluating mandibular invasion by benign and malignant neoplasms. Magnetic resonance imaging, using T₁ and T₂ images, was compared with conventional imaging methods in 11 patients with malignant lesions and nine patients with benign lesions. In all cases, magnetic resonance imaging most accurately determined the full extent of tumor invasion in the mandibular marrow spaces. Magnetic resonance imaging appears to be superior to offer clear benefits over conventional imaging methods, including computed tomography, for the evaluation of tumor invasion of the mandible.

(Arch Otolaryngol Head Neck Surg. 1990;116:454-459)

Author Affiliations
From the Division of Head and Neck Surgery and the Jonsson Comprehensive Cancer Center (Drs Ator, Abemayor, and Ward); and the Department of Radiological Sciences, UCLA School of Medicine (Drs Lufkin and Hanafee), Los Angeles, Calif.

Footnotes
Accepted for publication December 1, 1989.

Presented in part at the American Society for Head and Neck Surgery meeting during the combined otolaryngology spring meetings, San Francisco, Calif, April 5, 1989.

Reprint requests to the Division of Head and Neck Surgery, CHS 62-132, UCLA School of Medicine, Los Angeles, CA 90024 (Dr Abemayor).

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