Extra-gingival peripheral ameloblastoma

Nurkic, Tarik; Castillo-Jorge, Sarah; Schmalfuss, Ilona M.

doi:10.37549/ar2517

2018

DOI: 10.37549/ar2517

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Extra-gingival peripheral ameloblastoma

Tarik Nurkic

Sarah Castillo-Jorge

Ilona M. Schmalfuss

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Cited by 3 publications

(1 citation statement)

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“…Extragingival peripheral ameloblastoma is an exceedingly rare tumor of human patients arising from the buccal mucosa. 8,13 This tumor demonstrates odontogenic features like peripheral palisading of basal cells with antibasilar nuclei and central stellate reticulum-like cells.…”

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confidence: 99%

Odontogenic-like neoplasms of the rabbit cheek: pathological features and comparison to cutaneous trichoblastoma and jaw-associated ameloblastoma

Murphy

Swan²,

Affolter

et al. 2023

Vet Pathol

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Odontogenic neoplasms demonstrate unique histopathological features and are thought to arise from the germinal tissues of the developing tooth germ, effectively restricting their anatomic origin to the tooth-bearing regions of the jaw and directly associated soft tissues of the oral cavity. Ectopic odontogenic-like neoplasms located in the skin of cats, rabbits, and human beings challenge these assumptions. Here we describe the clinical, pathological, and immunohistochemical features of 6 spontaneously occurring odontogenic-like neoplasms arising in the cutaneous tissue of the cheek in client-owned pet rabbits, including ameloblastoma-like (n = 3), ameloblastic fibroma-like (n = 2), and ameloblastic carcinoma-like neoplasms (n = 1). Microscopically, all the cheek tumors featured neoplastic epithelium exhibiting odontogenic architectural structures (plexiform ribbons, anastomosing trabeculae, follicles, cysts, and irregular structures with rounded botryoid protuberances) and 1 or more cardinal odontogenic epithelial features (basal palisading, antibasilar nuclei, and central stellate reticulum–like cells). The pancytokeratin, cytokeratin 5/6, cytokeratin 14, and vimentin immunohistochemical patterns of these odontogenic-like lesions were most similar to those of jaw-associated ameloblastoma and differed from those of cutaneous trichoblastoma. All neoplasms were narrowly excised, and for lesions with clinical follow-up information, none had evidence of recurrence 1–7 months after surgical removal. Although evidence suggests that these odontogenic-like tumors of the rabbit cheek may be derived from ectopic rests of transformed tooth germ, the histogenesis of these lesions remains unresolved.

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mentioning

confidence: 99%

Odontogenic-like neoplasms of the rabbit cheek: pathological features and comparison to cutaneous trichoblastoma and jaw-associated ameloblastoma

Murphy

Swan²,

Affolter

et al. 2023

Vet Pathol

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Current practice in the management of peripheral ameloblastoma: a structured review

Anpalagan

Tzortzis

Twigg

et al. 2021

British Journal of Oral and Maxillofacial Surgery

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Peripheral Ameloblastoma: A Case Report and Review of Literature

Decani,

Quatrale,

Caria

et al. 2024

JCM

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Peripheral ameloblastoma (PA) is a rare benign tumor that can occur mostly in the mandibular gingiva of the premolar area, originating from the residual odontogenic epithelium. The patient is usually asymptomatic and the lesion can be an occasional finding during routine intraoral examination. Due to the lack of clinical and radiographic pathognomonic features, the diagnosis is based on histopathological analysis, associated with 3D computed tomography (CT) imaging. Here, we report the case of a middle-aged man showing an asymptomatic, sessile, normochromic papillomatous mass of the lingual alveolar mucosa, in correspondence of tooth 4.4, which was histologically diagnosed as peripheral ameloblastoma. After the complete excision of the lesion, there were no recurrence and no symptoms during the 3-year follow-up. The treatment of choice for PA is a conservative surgical excision, which usually results in a good prognosis, together with a long-term follow-up, necessary to intercept possible recurrence or, more rarely, malignant transformation.

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Extra-gingival peripheral ameloblastoma

Cited by 3 publications

References 8 publications

Odontogenic-like neoplasms of the rabbit cheek: pathological features and comparison to cutaneous trichoblastoma and jaw-associated ameloblastoma

Odontogenic-like neoplasms of the rabbit cheek: pathological features and comparison to cutaneous trichoblastoma and jaw-associated ameloblastoma

Current practice in the management of peripheral ameloblastoma: a structured review

Peripheral Ameloblastoma: A Case Report and Review of Literature

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