Intraoral spindle-cell lipoma with chondroid differentiation: importance in the diagnosis of oral lesions presenting chondroid tissue

Takahama Junior, Ademar; Brantes, Michele F.; Leon, Jorge E.; Gouvêa, Adriele F.; Almeida, Oslei P.

doi:10.5935/1676-2444.20160032

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PATHOLOGY, Case Report • J. Bras. Patol. Med. Lab. 52 (3) • May-Jun 2016 • https://doi.org/10.5935/1676-2444.20160032 copy

Intraoral spindle-cell lipoma with chondroid differentiation: importance in the diagnosis of oral lesions presenting chondroid tissue

Lipoma de células fusiformes intraoral com diferenciação condroide: importância no diagnóstico de lesões orais contendo tecido cartilaginoso

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Lipomas are benign neoplasms of adipose tissue presenting several histologic variants, which can be rarely found in the oral cavity. We present a case of a 62-year-old woman with a submucous nodule located in the tongue. Histopathological examination revealed an encapsulated tumor composed of myxoid tissue, spindle cells and mature adipocytes in transition to cartilaginous tissue. The final diagnosis was spindle-cell lipoma with myxoid change and chondroid differentiation. No sign of recurrence was found after five years. The diagnosis of intraoral mesenchymal lesions with chondroid differentiation requires careful histologic examination, mainly to differentiate between benign and malignant lesions.

Key words:
lipoma; diagnosis; microscopy; cartilage

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[1] CORRESPONDING AUTHOR: Ademar Takahama Junior, Rua Pernambuco, 540; Centro; CEP: 86020-120; Londrina-PR, Brasil; e-mail: ademartjr@uel.br.