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Oral Intramuscular Lipoma with Unusual Clinical Presentation: Differential Diagnosis and Review of the Literature

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Autor(es):
Barbosa, Ana Flavia Simoes ; Silva-Sousa, Yara Teresinha Correa ; Rached Jr, Fuad Abi ; Silveira, Heitor Albergoni ; Leon, Jorge Esquiche
Número total de Autores: 5
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF MAXILLOFACIAL & ORAL SURGERY; v. N/A, p. 4-pg., 2024-06-26.
Resumo

IntroductionLipoma is a soft tissue neoplasm that frequently affects adults but has a low frequency in the oral cavity. Intramuscular lipoma (IML) is a distinctive variant of lipoma, commonly affecting the muscles of the upper extremities. To date, approximately 22 cases of IML affecting the oral cavity have been reported.MethodologyHere, we report two oral IML cases showing unusual clinical features. A 30-year-old female was referred for evaluation of a nodular lesion on the mucosal surface of the lower lip, clinically suggesting mucocele. A 48-year-old man presented with a nodular lesion, yellowish coloring, asymptomatic, located at the posterior lateral portion of the tongue, clinically suggesting lymphoepithelial cyst, subgemmal neurogenous plaque and lateral lingual tonsil hypertrophy.ResultsAfter excisional biopsy, mature adipose tissue permeated by skeletal muscle bundles was observed in both cases, confirming the diagnosis of IML.ConclusionAlthough rare, IML should be included in the differential diagnosis of nodular lesions affecting the oral cavity. (AU)

Processo FAPESP: 16/11419-0 - Correlação clinicopatológica do grau de diferenciação, expressão de tetraspaninas, agentes virais e proliferação celular em uma ampla série de carcinomas espinocelulares da região de cabeça e pescoço.
Beneficiário:Jorge Esquiche León
Modalidade de apoio: Auxílio à Pesquisa - Regular
Processo FAPESP: 18/12734-2 - Caracterização imunoistoquímica comparativa de subgrupos de células dendríticas e oncogênese viral no carcinoma espinocelular oral e orofaríngeo
Beneficiário:Heitor Albergoni da Silveira
Modalidade de apoio: Bolsas no Brasil - Mestrado