Surgical management of conventional ameloblastoma: a retrospective cohort study over the past 21 years.

Oral Maxillofac Surg

Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil.

Published: November 2024

AI Article Synopsis

  • The study presents a cohort of 24 patients treated for conventional ameloblastoma, focusing on the outcomes after marginal or segmental resections over 21 years.
  • Most patients were middle-aged females, with the mandible being the most affected site and a predominance of multilocular lesions.
  • The results indicate a low recurrence rate (8.33%) following surgery, with patients monitored for an average of 79.25 months, suggesting that marginal/segmental resection is effective in managing this type of tumor.

Article Abstract

Conventional ameloblastoma presents infiltrative behavior and its treatment ranges from enucleation combined with adjuvant therapies to marginal/segmental resection. The purpose of this study is to present a cohort of twenty-four patients with ameloblastoma treated in the same institution after marginal/segmental resection for the past 21 years. All cases had diagnosis confirmation by incisional biopsy. Patients with an unconfirmed diagnosis and missing follow-up information were excluded. Data were categorized into clinicopathological, surgical and recurrence aspects. Thirteen patients were females (54%). The mean age was 40.2 years. Mandible was the most affected site (91%). The mean length of the lesions was 4.10 cm (± 2.06) and the multilocular aspect was predominant (83%). Root resorption (37.5%), tooth displacement (45.8%) and cortical perforation (45.8%) were noticed. Histologically, most of the cases were follicular (n = 19,79%). Microscopic analysis showed positive margins in four cases. Patients were treated by marginal (n = 19) and segmental (n = 5) resections. Recurrence occurred in two cases (8.33%). Both primary and recurrent ameloblastomas were treated through marginal resections and no recurrence was observed during the past 9 and 5 years after the last intervention, respectively. The overall mean follow-up was 79.25 months and patients are still monitored over these years. Marginal/segmental resection of conventional ameloblastoma is associated with a low recurrence rate.

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http://dx.doi.org/10.1007/s10006-024-01296-1DOI Listing

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