Histopathological Variants of Ameloblastoma: A Concise Overview

Histopathological Variants Of Ameloblastoma: A Concise Overview

Question 1. Write a short note on histopathological variants of ameloblastoma.
Or
Write in detail on histopathological types/variants of ameloblastoma.

Answer:

“Types of ameloblastoma explained”

The following are the histopathological variants of ameloblastoma

• Desmoplastic type: There is the presence of marked hyalinization of connective tissue stroma.
• Basal cell type: Tumor islands show a basaloid pattern of cells.
• Clear cell type: Solid multicystic ameloblastoma may contain clear cells, which are localized to the stellate reticulum-like areas of follicular ameloblastoma.
• Keratoameloblastoma and papilliferous keratoameloblastoma:
• Ameloblastoma consists partly of keratinizing cysts and partly of tumor islands with papilliferous arrangement
• Mucous cell differentiation type: Follicular ameloblastoma showing focal mucous cell differentiation.
• Hemangiomatous ameloblastoma: It is an ameloblastoma in which part of the tumor contains spaces filled with blood or large endothelial-lined capillaries.

ameloblastoma

Odontogenic Tumors Question Bank

“Understanding ameloblastoma histopathology”

Question 2. Classify odontogenic tumors. Describe in detail etiopathogenesis, clinical features, radiology, histopathologic features, and differential diagnosis of adenomatoid odontogenic tumor.
Or
Give a classification of odontogenic tumors. Discuss the clinical features and histopathology of AOT.
Or
Classify odontogenic tumors. Write in detail about adenomatoid odontogenic tumors.

Answer.

“Role of histopathology in diagnosing ameloblastoma”

Etiopathogenesis Of Odontogenic Tumors

• Since adenomatoid odontogenic tumor occurs within tooth­bearing areas of it arises from reduced enamel epithelium during the presecretory phase of enamel organ development.
• Some category of authors also believes that it arises from the dental lamina or a preexisting dentigerous cyst.

histopathological variants of ameloblastoma

Radiology Of Odontogenic Tumors

“Histopathological classification of ameloblastoma”

• Radiographically tumor presents a well­circumscribed unilocular radiolucent area which consists of an impacted tooth or odontome and exhibits a smooth corticated border.
• Multilocular radiolucencies are also seen rarely with scalloped borders.
• At times, radio­opaque foci are detectable within a radiolucent lesion.
• As the lesion progresses, divergence of roots and displacement of teeth are seen.