Schwannoma mamario: un diagnóstico inesperado por resonancia magnética / Schwannoma of the breast: an unexpected diagnosis by magnetic resonance

El schwannoma es un tumor benigno de la vaina de los nervios periféricos muy infrecuente en la mama, con sólo 28 casos descritos en la literatura. Presentamos el caso de una mujer de 63 años en estudio por alto riesgo familiar de cáncer de mama en la se encontró una lesión mamaria izquierda cuyas características en resonancia magnética (RM) como, posteriormente, en ecografía y mamografía, indicaban benignidad, lo cual se confirmó tras la biopsia ecoguiada mediante aguja gruesa (BAG). Los hallazgos de la radiología convencional se correlacionaban con los descritos en la bibliografía revisada. Pensamos que este caso es relevante porque su diagnóstico inicial fue casual y mediante RM, la cual no está indicada para caracterizar tumores de características benignas. Este dato es infrecuente en la bibliografía revisada ya que la mamografía, ecografía y la histología, finalmente, constituyen las claves de su diagnóstico convencional (AU)

Schwannomas consist of benign tumors that arise from the nerves, however, they are not frequent in the breast. Our search criteria only found 28 cases described in Literature. We show the case about a 63 years old woman who underwent a breast magnetic resonance (MR) because of high risk for breast cancer, in which a lession on her left breast was found. Not only MR features seemed to be benign, but ultrasound and mamography features, too. The diagnosis of schwannoma was confirmed by ultrasound-guided biopsy. Findings in conventional radiology were correlated with those described in the reviewed literature. n our opinion, this case results valuable due to the inicial diagnosis by MR, which is not an imaging proof for bening tumors, innitially. According to the revised bibliography these features are pretty funny, as mamography and ultrasound, with histological findings, are the clues for the usual diagnosis (AU)

Schwannoma of the breast: an unexpected diagnosis by magnetic resonance. / Schwannoma mamario: un diagnóstico inesperado por resonancia magnética.

Schwannomas consist of benign tumors that arise from the nerves, however, they are not frequent in the breast. Our search criteria only found 28 cases described in Literature. We show the case about a 63 years old woman who underwent a breast magnetic resonance (MR) because of high risk for breast cancer, in which a lession on her left breast was found. Not only MR features seemed to be benign, but ultrasound and mamography features, too. The diagnosis of schwannoma was confirmed by ultrasound-guided biopsy. Findings in conventional radiology were correlated with those described in the reviewed literature. In our opinion, this case results valuable due to the inicial diagnosis by MR, which is not an imaging proof for bening tumors, innitially. According to the revised bibliography these features are pretty funny, as mamography and ultrasound, with histological findings, are the clues for the usual diagnosis.