Mandibular ameloblastoma with papillary hyperplasia in the gingiva: A case report

Although ameloblastomas are relatively common tumors, they rarely occur in the gingiva or oral mucosa. Most gingival or oral ameloblastomas are peripheral (that is, soft-tissue) ameloblastomas; therefore, an exophytic peripheral lesion from an intraosseous ameloblastoma is unusual. Here, we report a...

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Bibliographic Details
Published inJournal of oral and maxillofacial surgery, medicine, and pathology Vol. 32; no. 4; pp. 281 - 284
Main Authors Konno, Yasunori, Fukuda, Masayuki, Suzuki, Syoken, Ohbuchi, Masahiko, Igarashi, Hidemitsu, Yamazaki, Masato, Nakata, Akira, Takano, Hiroshi
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.07.2020
Subjects
Intraosseous ameloblastoma
Papillary hyperplasia
Peripheral ameloblastoma
Intraosseous ameloblastoma
Peripheral ameloblastoma
Papillary hyperplasia
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Summary:Although ameloblastomas are relatively common tumors, they rarely occur in the gingiva or oral mucosa. Most gingival or oral ameloblastomas are peripheral (that is, soft-tissue) ameloblastomas; therefore, an exophytic peripheral lesion from an intraosseous ameloblastoma is unusual. Here, we report a 63-year-old man who had an ameloblastoma with papillomatous proliferation in the lingual gingiva. Magnetic resonance imaging showed a well-defined mass in the mandible. These tumors were enucleated intraorally under general anesthesia. Histopathological and immunohistochemical examinations revealed that the respective tumors were a papilloma and an ameloblastoma, with different origins. The histopathological diagnosis was an intraosseous ameloblastoma with papillary hyperplasia. The patient’s postoperative course was uneventful during his 20-month post-enucleation follow-up period.
ISSN:2212-5558
2212-5566
DOI:10.1016/j.ajoms.2020.03.005