| ameloblastic adenomatoid tumour | A benign epithelial odontogenic tumour appearing radiographically as a well-circumscribed radiolucent-radiopaque lesion usually surrounding the crown of an impacted tooth in an adolescent or young adult; characterised histologically by columnar cells organised in a duct-like configuration interspersed with spindle-shaped cells and amyloid-like deposition that gradually undergoes dystrophic calcification. Synonym: adenoameloblastoma, ameloblastic adenomatoid tumour. (05 Mar 2000) |
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| ameloblastic fibroma | <tumour> A benign mixed odontogenic tumour characterised by neoplastic proliferation of both epithelial and mesenchymal components of the tooth bud without the production of dental hard tissue; presents clinically as a slow-growing painless radiolucency occurring most commonly in the mandible of children and adolescents. (05 Mar 2000) |
| ameloblastic fibrosarcoma | <tumour> A rapidly growing, painful, destructive, radiolucent odontogenic tumour that usually arises through malignant change in the mesenchymal component of a pre-existing ameloblastic fibroma. Synonym: ameloblastic sarcoma. (05 Mar 2000) |
| ameloblastic layer | The internal layer of the enamel organ. Synonym: enamel layer. (05 Mar 2000) |
| ameloblastic odontoma | <tumour> A benign mixed odontogenic tumour comprised of an undifferentiated component histologically identical to an ameloblastoma and a well differentiated component identical to an odontoma; appears as a mixed radiolucent-radiopaque lesion and presents clinically as an ameloblastoma. Synonym: odontoameloblastoma. (05 Mar 2000) |
| ameloblastic sarcoma | <tumour> A rapidly growing, painful, destructive, radiolucent odontogenic tumour that usually arises through malignant change in the mesenchymal component of a pre-existing ameloblastic fibroma. Synonym: ameloblastic sarcoma. (05 Mar 2000) |
| ameloblastic adenomatoid t. |
adenomatoid odontogenic t.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| ameloblastic c. |
a type of ameloblastoma in which malignant epithelial transformation has occurred; the metastatic lesions do not resemble the primary tumor histologically, instead usually resembling squamous cell carcinoma. Cf. malignant ameloblastoma.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| ameloblastic f. |
an odontogenic tumor characterized by the simultaneous proliferation of both epithelial and mesenchymal tissue, without the formation of enamel or dentin.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| ameloblastic h. |
hemangioameloblastoma.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| ameloblastic l. |
the inner layer of cells of the enamel organ, created by its invagination, which forms the enamel prisms.
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