J Korean Radiol Soc.
1995 Sep;33(3):351-356.
Ameloblastoma of the Mandible and Maxilla: CT Findings
Abstract
- PURPOSE
To describe the characteristic CT findings of ameloblastomas in the mandibleand maxilla.
MATERIALS AND METHODS
CT findings of 11 patients with ameloblastoma (9 cases in the mandible and 2 cases in the maxilla) proved by excisional biopsy were evaluated retrospectively with regard to the location, size, multilocularity, solid and cystic component, cortical destruction, soft tissue invasion, and contrast enhancement
RESULTS
These were 8 multilculer expansile and I unicystic (developed in a dentigerous cyst) mandibler ameloblasftomas, and 2 unilocular maxillary ameloblasftomas. All cases showed inhomogenously enhancing solid component, nine of which were larger than cystic component. Nine cases, larger than 5 cm in diameter, revealed either a focal or extensive cortical destruction with various degree of invasion into the adjacent structures. One maxillary ameloblastoma contained a thick calcification along the margin of the lesion.
CONCLUSION
Maxillomandibular ameloblastomas appeared as expansile lesion containing enhancing solid component relatively larger than cystic portion and having cortical destruction in large lesions(5cm>). Maxillary ameloblastomas were unilocular in appearance in spite of multilocularity in mandibular counterparts.
