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Ameloblastoma: Histopathology and Characteristics

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Ameloblastoma: Histopathology and Characteristics

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Questions and Answers

What is the most common odontogenic tumor?

Ameloblastoma

What are the clinical features of multicystic ameloblastoma?

Race: Black, Gender: ♂= ♀, Age: 30-50 y, Site distribution: 70% 10% 20%, Slowly growing painless hard bony swelling, Egg-shell crackling, Adjacent teeth displacement, mobility, root resorption, Paresthesia of lips

How does ameloblastoma manifest radiographically?

Well-defined multilocular radiolucencies, Roots of adjacent teeth are resorbed, Teeth displacement, Honeycombed appearance, Soap-bubble appearance

What are the possible origins of ameloblastoma?

<p>A developing enamel organ & its remnants (REE), Dental lamina & its remnants (rests of Serres), Epithelial root sheath of Hertwig’s & its remnants, The epithelial lining of odontogenic cysts, The basal layer of surface epithelium</p> Signup and view all the answers

What are the two main types of ameloblastoma seen microscopically?

<p>Follicular ameloblastoma and Plexiform ameloblastoma</p> Signup and view all the answers

Study Notes

Odontogenic Tumors

Ameloblastoma is the most prevalent odontogenic tumor, known for its aggressive nature.

Clinical Features of Multicystic Ameloblastoma

Typically presents as a painless swelling in the mandible or maxilla.
May cause displacement of teeth and resorption of adjacent tooth roots.
Can occur in a wide age range, commonly seen in young adults.

Radiographic Manifestation of Ameloblastoma

Appears as well-defined, multilocular (soap bubble or honeycomb) radiolucency on imaging.
Often associated with impacted teeth and can cause cortical bone expansion.

Possible Origins of Ameloblastoma

May derive from remnants of the dental lamina or enamel organ.
Possible contributions from epithelial cells in associated or adjacent tissues.

Microscopic Types of Ameloblastoma

Two primary histological variants are:
- Follicular ameloblastoma: characterized by the presence of well-formed dental follicles.
- Plexiform ameloblastoma: exhibits a more diffuse architecture without distinct follicles.

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Description

Test your knowledge on Ameloblastoma, the most common odontogenic tumor of the jaws. Learn about its definition, characteristics, and possible causes.