FEMALE BREAST MYOFIBROBLASTOMA: CASE REPORT / Miofibroblastoma de mama feminina: relato de caso

The myofibroblastoma of the breast is rare, being even less frequent in women. It is a benign mesenchymal tumor of uncertain etiology. The present study reports the case of a 47-year-old patient with a palpable nodule on the right breast, non-painful, having appeared approximately one year before, and with slow growth, located in an inferolateral quadrant. The biopsy pathology product describes a firm, yellowish white tissue that microscopically exhibited fusocellular proliferation without atypia, including small ductal structures with epithelial hyperplasia, suggesting immunohistochemistry which revealed expression of desmin and smooth muscle actin. Based on the morphological and anatomopathological picture, the diagnosis of breast myofibroblastoma was confirmed. Sectorectomy surgery was performed as treatment

O miofibroblastoma de mama é raro, sendo menos frequente ainda em mulheres. Trata-se de um tumor mesenquimal benigno de etiologia incerta. A presente descrição relata o caso de uma paciente de 47 anos, apresentando um nódulo palpável na mama direita, não doloroso, com surgimento há aproximadamente um ano e de crescimento lento, localizado em quadrante ínferolateral. O anatomopatológico de biópsia produto de core biopsy descreve tecido branco amarelado, de consistência firme, que microscopicamente apresenta proliferação fusocelular sem atipias, incluindo pequenas estruturas ductais com hiperplasia epitelial, sugerindo imuno-histoquímica, a qual revelou expressão de desmina e actina de músculo liso. Com base no quadro morfológico e anatomopatológico, confirmou-se o diagnóstico de miofibroblastoma de mama. Foi realizada setorectomia como tratamento

Recurred Myofibroblastoma of Breast After Excision: A Case Report

Myofibroblastoma of the breast is a rare benign mesenchymal tumor that is known to occur in middle-aged and elderly men, yet there are some recent reports showing no certain difference for the gender distribution of this malady. Localized mass excision can usually provide a complete cure. To the best of our knowledge, there have been no reports of metastasis or recurrence of this tumor. Here we describe the sonographic findings of a case of recurrent myofibroblastoma after surgical excision for suspected fibroadenomas in both breasts of a 25-year-old woman.

US and Mammographic Findings of Myofibroblastoma in the Female Breast: A Case Report

Myofibroblastoma is a rare benign mesenchymal tumor of the breast. It presents as a well circumscribed, solitary nodular mass, and it has been reported to mainly occur in male patients. To our knowledge, few reports have described the radiologic appearance of myofibroblastoma in the female breast and there has been no report from Korea. We describe the mammographic, sonographic and histologic findings of a case of myofibroblastoma that presented as a well defined mass mimicking fibroadenoma in a 44-year-old woman.