{"id":883,"date":"2022-10-11T07:56:44","date_gmt":"2022-10-11T07:56:44","guid":{"rendered":"https:\/\/medinaz.com\/blog\/?p=883"},"modified":"2022-10-11T07:56:46","modified_gmt":"2022-10-11T07:56:46","slug":"ameloblastoma-radiology-dental-radiology-notes","status":"publish","type":"post","link":"https:\/\/medinaz.com\/blog\/2022\/10\/11\/ameloblastoma-radiology-dental-radiology-notes\/","title":{"rendered":"Ameloblastoma Radiology: Dental Radiology Notes"},"content":{"rendered":"\n

Ameloblastoma Radiology: Illustrated Dental Notes for NBDE, NEET MDS and Dental Board Exams<\/p>\n\n\n\n

Ameloblastoma Radiology: Commonly affected areas:<\/strong><\/h3>\n\n\n\n

Mandible<\/strong> – 80% develop in the molar-ramus region<\/strong> of the mandible, but may extend to the symphyseal area. (ref<\/a>)<\/p>\n\n\n\n

Maxilla<\/strong> – it is more common in the third molar region<\/strong> and may extend into the maxillary sinus and nasal floor.\u00a0<\/p>\n\n\n\n

In either jaw the tumor usually originates in an occlusal position<\/strong> to a developing tooth<\/strong>.<\/p>\n\n\n\n

Periphery of the lesion:<\/strong><\/h3>\n\n\n\n

It usually has a well-defined<\/strong> and frequently delineated by a corticated border<\/strong>, which is curved<\/strong> an in small lesions the border and shape may be indistinguable from a cyst.\u00a0<\/p>\n\n\n\n

The periphery of the lesion in the maxilla is more ill-defined.<\/p>\n\n\n\n

Ameloblastoma Internal structures:<\/strong><\/h3>\n\n\n\n

The internal structure varies from totally radiolucent to mixed with presence of bony septa<\/p>\n\n\n\n

The septa can be straight but are more commonly \u201ccoarse<\/strong>\u201d or \u201ccurved<\/strong>\u201d<\/p>\n\n\n\n

The septa is originated from normal bone that has been trapped within the tumor<\/p>\n\n\n\n

Radiological variants of Ameloblastoma:<\/h3>\n\n\n\n

H.M. Worth described 4types of appearances:<\/p>\n\n\n\n

Unicystic type ameloblastoma:<\/strong><\/p>\n\n\n\n

It appears as a unilocular radiolucency resembling a cyst. However, unlike a cyst, it causes a break or discontinuity<\/strong> in the peripheral cortex and may even show trabeculae<\/strong> within the lumen.<\/p>\n\n\n\n

\"Unicystic-Ameloblastoma\"
Unicystic-Ameloblastoma<\/span><\/strong><\/figcaption><\/figure><\/div>\n\n\n\n

Solid\/honeycomb type ameloblastoma:<\/strong><\/p>\n\n\n\n

It is one which has not undergone cystic degeneration. Hence multiple small radiolucencies are seen surrounded by hexagonal or polygonal thick walled bony cortices giving rise to a honeycomb<\/strong> or soap bubble<\/strong> appearance. The jaw may be expanded laterally<\/strong> and inferiorly<\/strong>. An unerupted tooth may be present<\/p>\n\n\n\n

\"Ameloblastoma
Ameloblastoma Radiology Solid variety<\/span><\/strong><\/figcaption><\/figure><\/div>\n\n\n\n

Multilocular type ameloblastoma:<\/strong><\/p>\n\n\n\n

Ameloblastoma may be seen as multilocular radiolucencies having a soap-bubble appearance<\/strong> or bunch of grapes<\/strong> type of appearance.<\/p>\n\n\n\n

\"Ameloblastoma
Ameloblastoma Radiology Multilocular type<\/span><\/strong><\/figcaption><\/figure><\/div>\n\n\n\n

Ameloblastoma Spider Variety:<\/strong><\/p>\n\n\n\n

This is the most common appearance where the lesion is seen as a large radiolucent area with scalloped borders. From the centre of the lumen, coarse strands of trabeculae radiate peripherally giving size to a gross caricature of a spider<\/strong><\/p>\n\n\n\n

\"Spider
Spider variety Ameloblastoma<\/span><\/strong><\/figcaption><\/figure><\/div>\n\n\n\n