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Case Reports
. 2011 Feb;40(2):126-9.
doi: 10.1259/dmfr/55423624.

A case of desmoplastic ameloblastoma arising in the maxillary alveolus: the origin and time-course changes in the early stage of tumour development observed on dental radiographs

K Katsura  1 , S Maruyama, M Suzuki, T Saku, R Takagi, T Hayashi
Affiliations
Case Reports

A case of desmoplastic ameloblastoma arising in the maxillary alveolus: the origin and time-course changes in the early stage of tumour development observed on dental radiographs

K Katsura et al. Dentomaxillofac Radiol. 2011 Feb.

Abstract

In this article we report a case of desmoplastic ameloblastoma in which chronological changes in the early development can be observed on dental radiographs. The tumour grew very slowly and did not appear to have a strong potential for local extension like typical ameloblastomas. Radiological findings of our case suggest the tumour arose from the periodontal membrane. However, it was not possible to obtain conclusive histopathological evidence.

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Figures

Figure 1
Figure 1
Panoramic radiograph from the initial examination. An ill-defined multilocular mixed radiopaque/radiolucent lesion between the canine and the first premolar of the right maxilla is shown. The roots of the canine and the second molar are displaced
Figure 2
Figure 2
A dental radiograph from the initial examination. Note disappearance of lamina dura without root resorption of the canine and the first premolar
Figure 3
Figure 3
Axial CT in bone window at two different locations in the maxilla showing buccolingual expansion of the cortical plate of the maxillary alveolus
Figure 4
Figure 4
Multiplanar reconstructed CT image parallel to the dental arch. Note the disappearance of the lamina dura of the canine adjacent to the lesion
Figure 5
Figure 5
Histopathological specimen (haematoxylin–eosin stain, ×100). (a) The specimen shows that the tumour is composed of rich fibrous connective tissue with a scattering of ameloblastomatous foci. (b) The ameloblastomatous foci are small and complicated in shape. The ameloblastomatous foci are often atrophic or hyperkeratotic owing to enhanced fibrosis around them
Figure 6
Figure 6
(a) Dental radiograph 8 years before the first visit to our hospital. Note the radiolucent lesion between the canine and the first premolar near the alveolar crest (arrow). The lamina dura and the periodontal ligament space next to the lesion are unclear. (b) The dental radiograph 3 years before the first visit to our hospital. The lesion has developed in comparison with Figure 6a. The lamina dura and the periodontal ligament space of the canine have become increasingly unclear
See this image and copyright information in PMC

References

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