Brain ameloblastoma: metastasis or local extension case report and physipathological reflexion

Jérémie Bettoni (1) , C. Neiva , A. Fanous , Matthieu Olivetto (1) , C. Demarteleire , Stéphanie Dakpé (1) , Bernard Devauchelle (2, 1)

1 CHIMERE - CHirurgie, IMagerie et REgénération tissulaire de l’extrémité céphalique - Caractérisation morphologique et fonctionnelle - UR UPJV 7516
2 CMF et Stomatologie - Chirurgie maxillofaciale et Stomatologie [CHU Amiens]

Background: Ameloblastoma is a rare benign odontogenic tumor with a metastasis rate estimated at 2% of cases, mainly involving the lung (80%) and lymph nodes (20%). Methods: We hereby present the case of a 26 year old patient with a history of locally recurrent mandibular ameloblastoma who developed a temporal intracranial ameloblastoma tumor requiring a collaborative neurosurgical and maxillo-facial radical surgical approach. Conclusion: Although ameloblastomas are histologically benign, the temporal topography questions the dissemination pathophysiology of the tumor (metastasis or local extension through temporal muscle fibers), mainly relevant in cases of multiple recurrences. (C) 2018 Elsevier Masson SAS. All rights reserved.

Domaines: Sciences du Vivant [q-bio]

Jérémie Bettoni, C. Neiva, A. Fanous, Matthieu Olivetto, C. Demarteleire, et al.. Brain ameloblastoma: metastasis or local extension case report and physipathological reflexion. Journal of Stomatology, Oral and Maxillofacial Surgery, 2018, 119 (5), pp.436-439. ⟨10.1016/j.jormas.2018.04.017⟩. ⟨hal-03598605⟩