Mandible & maxilla
Benign odontogenic tumors
Ameloblastic fibroma
Author: Nat Pernick, M.D.
Last author update: 1 January 2004
Last staff update: 8 August 2022
Copyright: 2004-2024, PathologyOutlines.com, Inc.
PubMed Search: Ameloblastic fibroma
Table of Contents
Definition / general | Radiology description | Treatment | Gross description | Microscopic (histologic) description | Microscopic (histologic) images | Differential diagnosisCite this page: Pernick N. Ameloblastic fibroma. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/mandiblemaxillaameloblasticfibroma.html. Accessed April 25th, 2024.
Definition / general
- Rare
- Usually age 20 or less
- Benign, rarely recurs
Radiology description
- Variable radiolucent - radiopaque appearance
Treatment
- Simple curettage
Gross description
- Usually solid
Microscopic (histologic) description
- Small islands and cords of markedly attenuated ameloblastic epithelium two cells thick within dense collagenous stroma that is often immature
- Occasional dentin or cementum production and stellate reticulum
- Also granular cell variant
Microscopic (histologic) images
Contributed by Kelly Magliocca, D.D.S., M.P.H.
Ameloblastic fibroma
Odontogenic islands with cystic change, within immature mesenchymal stroma
AF at scanning magnification
Odontogenic islands
Odontogenic cords within immature mesenchymal stroma
Differential diagnosis
- Ameloblastoma: no connective tissue stroma, has dentin and enamel
