Vascularized ameloblastoma: A case report and clinicopathologic review of 18 cases from the literature

Ameloblastoma, a benign epithelial odontogenic tumor, has an intriguing feature by virtue of its diverse histopathologic variants. One such variant that is not yet acclimatized in the literature due to the paucity of cases is “hemangiomatous ameloblastoma” (HA). HA exhibits the histology of conventional ameloblastoma with marked vascularity, which resembles the enamel organ and dental sac. Herein, we present the case of a 33-year-old male patient with swelling of the lower left back region of the jaw for 6 months, which on imaging presented multilocular radiolucency. Incisional biopsy was suggestive of ameloblastoma, and an excisional procedure showed odontogenic epithelial islands with marked vascular proliferation, based on which the diagnosis of HA was rendered. The rarity of this histologic variant and lack of long-term follow-up records in the literature challenges the clinician to predict its biological behavior. Hence, further research is required to understand the same.

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Recurrent Tumors of Ameloblastoma

Nwoga

2022

Nigerian Journal of Clinical Practice

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Context: Ameloblastoma is a benign epithelial odontogenic tumor with a tendency for recurrence. Some recurrent tumors could behave unpredictably with atypical microscopic changes. Aim: To study the clinicopathologic features and diagnoses of recurrent tumors of ameloblastoma. Settings and Design: This is a 5-year (2012–2017) retrospective study of 17 consecutive patients with recurrent tumors of ameloblastoma in a Teaching Hospital in Enugu. Methods and Material: The relevant clinicopathologic information, histology slides, and blocks were retrieved and reviewed. Descriptive analysis was used to determine the frequency, tables for categorical variables, and a Chi-square test was used to determine the statistical significance. Result: Recurrent tumors constituted 33.3% (17/51) of all confirmed diagnoses of ameloblastoma. The histopathologic diagnosis of the recurrent tumors includes conventional ameloblastoma 58.8% (10/17), unicystic ameloblastoma 5.9% (1/17), and ameloblastic carcinoma 35.3% (6/17). There was bilateral mandibular involvement in 60.0%, pain 58.8%, ulceration 29.4%, and matted lymph nodes 5.9%. Tumors with positive fluid aspirates 82.4% (14/17) yielded dark-brown fluids in 90.0% (9/10) of recurrent ameloblastomas and in 66.7% (2/3) of ameloblastic carcinomas. Conclusion: There was a high recurrence rate of recurrent tumors of ameloblastoma demonstrated in the present study, with a malignant presentation in some cases.

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Vascularized ameloblastoma: A case report and clinicopathologic review of 18 cases from the literature

Cited by 3 publications

References 16 publications

Hemangiomatous adenomatoid odontogenic tumor of maxilla: A new variant?

Hemangiomatous adenomatoid odontogenic tumor of maxilla: A new variant?

Hemangiomatous Ameloblastoma: A Case Report with a Review of Literature

Recurrent Tumors of Ameloblastoma

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