Intramuscular lipoma in the tongue: case report and literature update

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DOI:

https://doi.org/10.22456/2177-0018.133575

Keywords:

Lipoma, Neoplasms, Pathology, oral, Surgery, oral

Abstract

Aim: To describe a case of a patient with intramuscular oral lipoma and to compile the main aspects of this rare lesion. Case report: A 78-year-old caucasian woman complained of a swelling on her tongue. The increase in volume showed an evolution of about 5 years. Physical examination revealed a nodular lesion on the right lateral border of the tongue with a diameter of approximately 2.5 cm, soft to the touch, smooth surface with no evidence of trauma, color similar to that of the lingual mucosa and with clear limits. An excisional biopsy was performed and the histopathological examination revealed mature adipose tissue, with muscle fibers trapped inside and around the lesion, absence of cytological atypia and mitosis, establishing the definitive diagnosis of intramuscular lipoma. There was no recurrence over a period of 4 years. Discussion: Lipoma is a benign neoplasm composed of mature adipocytes, uncommon in the oral cavity. Its intramuscular pattern is a rare form of lipoma with infiltrative behavior and a higher recurrence rate than the common lipoma. Its etiopathogenesis is not fully understood and its standard treatment is surgical excision. This lesion makes a differential diagnosis with other important pathologies, including liposarcoma. There are few documented cases of intramuscular lipomas on the tongue. Conclusion: Intramuscular oral lipoma is rare and dentists need to pay attention to its differential diagnosis with liposarcoma and its greater potential for recurrence in relation to common lipoma.

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Published

2023-11-22

How to Cite

Bassan Marinho Maciel, G., Mello Palma, V., Monteiro Pereira, J., Castro Torriani, E., Linhares Ferrazzo, K., & Cademartori Danesi, C. (2023). Intramuscular lipoma in the tongue: case report and literature update. Revista Da Faculdade De Odontologia De Porto Alegre, 64, e133575 . https://doi.org/10.22456/2177-0018.133575

Issue

Vol. 64 (2023)

Section

Case reports

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Copyright (c) 2023 Gabriel Bassan Marinho Maciel, Victor Mello Palma, Juliana Monteiro Pereira, Eva Castro Torriani, Kívia Linhares Ferrazzo, Cristiane Cademartori Danesi

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