Mixoma odontogênico em maxila com invasão do seio maxilar

Filho, Ruy de Oliveira Veras; Pinheiro, Silvano Santos; Almeida, Isabel Cristina Pinheiro de; Arruda, Maria de Loudes Silva; Costa, Antônio de Lisboa Lopes

doi:10.1590/s0034-72992008000600021

Cited by 1 publication

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References 5 publications

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“…However, histologically, hypocellular areas comprising paucicellular myxomatous lesions with dispersed, inconspicuous spindle and stellate cells without pleomorphism, with slight collagen fibers and with sparse capillary blood vessels were observed, differently of the traumatic fibroma that would exhibit dense collagen fibres. [18][19][20] But the soft tissue myxoma can be also differentiated from odontogenic fibroma and neurofibrossarcoma. 13,18,21,22 Odontogenic fibroma exhibits cords of odontogenic epithelium immersed in a mature collagen rich stroma, 5 and the neurofibrossarcoma shows strong positive reaction to the S-100 protein, while soft tissue myxoma has no reaction to this protein.…”

Section: Discussionmentioning

confidence: 99%

Oral Soft Tissue Myxoma: Report of an Unusual Case and Review of Literature

Alves¹,

Figueredo²,

Pessoa³

et al. 2011

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Os mixomas de tecidos moles são tumores benignos de diferenciação incerta, desenvolvem-se em tecidos moles somáticos como músculos, tecidos subcutâneos e dérmicos. Na cavidade oral, são extremamente raros. Histologicamente exibem células fusiformes e estreladas em estroma mixoide. Neste trabalho, é relatado um caso de mixoma de tecidos moles localizado na região da borda alveolar superior posterior, estendendo-se para o palato, acometendo paciente do sexo masculino de 34 anos de idade. Foi feita biópsia excisional da lesão e, seis meses após, houve recidiva. Destacam-se, ainda, os achados atuais relatados na literatura, com interesse de expandir as características pertinentes dessa lesão. Palavras-chave. Mixoma de tecidos moles; cavidade oral; rebordo alveolar; neoplasia benigna. Soft tissue myxomas are benign tumours of uncertain differentiation, arising in somatic soft tissues as muscles, dermal and subcutaneous tissues. In oral cavity they are extremely rare. Histologically, it showed spindle-shaped cells in a myxoid stroma. This paper relates a case of soft tissue myxoma at the right posterior superior alveolar ridge in a 34-year-old male. An excisional biopsy was made and presented with recurrence six months later. The current findings in the literature are also highlighted, in order to expand the peculiar characteristic of this unusual lesion.

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