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/s10006-024-01296-1 | DOI Listing |
J Clin Exp Dent
December 2024
Department of Oral Surgery and Oral Medicine, Faculty of Dentistry, Srinakharinwirot University.
Background: N6-methyladenosine (m6A), the most abundant internal RNA modification in mammals, plays a critical role in many forms of cancer. Methyltransferase-like 3 (METTL3) serves as the main catalytic subunit of the m6A writer and plays a role in the progression of head and neck squamous cell carcinoma. To date, the role of METTL3 in odontogenic lesions has never been investigated.
View Article and Find Full Text PDFOral Maxillofac Surg
December 2024
Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences Institute of Medical Sciences, Banaras Hindu University, Varanasi Uttar Pradesh, 221001, India.
Purpose: Ameloblastoma is a benign tumor originating from odontogenic epithelium with a global incidence of about 0.5 cases per million persons per year. The overall recurrence rate of ameloblastomas range from 55% -90%.
View Article and Find Full Text PDFCureus
November 2024
Otolaryngology and Head and Neck Surgery, Kobe City Medical Center General Hospital, Kobe, JPN.
This report presents a notable approach to treating a locally invasive maxillary ameloblastoma in a 46-year-old woman using an endoscopy-assisted total maxillectomy via a contralateral transmaxillary approach without a subciliary incision. Ameloblastomas, though benign, require radical surgical management due to their aggressive nature and high recurrence rates, especially in the maxilla. Traditional techniques often involve extensive facial incisions, leading to significant scarring and potential complications.
View Article and Find Full Text PDFHead Neck Pathol
December 2024
Institute of Pathology, Sheba Medical Center, Tel Hashomer, 5265601, Israel.
Purpose: Current standard of care for ameloblastoma (conventional/unicystic - mural type) usually mandates extensive bone resection that frequently necessitates immediate reconstruction with serious sequelae, especially among young patients. BRAF-mutated ameloblastomas can be targeted by BRAF inhibitors to markedly reduce their size, enabling conservative removal of residual tumor. We aimed to characterize the effect of post-treatment histomorphologic changes.
View Article and Find Full Text PDFAppl Immunohistochem Mol Morphol
November 2024
Department of Basic Sciences, College of Dentistry, Princess Nourah bint Abdulrahman University, 84428, Riyadh 11671, Saudi Arabia.
Odontogenic cysts and tumors exhibit a broad spectrum of biological characteristics. Despite recent advances in understanding the complex nature of these lesions, relatively less is known about the molecular markers involved in key pathogenic steps, such as proliferation and differentiation. This study aimed to elucidate the expression patterns of p63 and Ki-67 in odontogenic lesions, which may influence the management strategies.
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