417 - Two-Stage Treatment of Ameloblastoma via Marsupialization/Decompression and Enucleation: Case Report

Ameloblastomas are uncommon benign odontogenic cysts that typically present in the posterior mandible.
There are three subtypes of Ameloblastomas: multicystic, unicystic, and peripheral.
All are rare in individuals younger than 19, however, 50% of unicystic ameloblastomas are diagnosed in the second decade.
Cystic lesions produce fluid, increasing pressure within ameloblastomas. Painless expansion reduces surrounding bone volume and allows the cyst to grow as cortical bone expands and thins.
Frequent treatment choice is surgical excision with marginal bloc resection or segmental resection. These methods, however, are aggressive and can be disfiguring.
In young patients particularly, a more conservative treatment is desirable.
Marsupialization/Decompression allows for constant drainage of cystic fluid to promote cortical regeneration. The smaller cyst is then enucleated at a later date, preserving mandibular integrity.


Identify Supporting Agency and Grant Number: Research supported by Children's Wsiconsin