乳房に発生したmyofibroblastomaの1例

森岡 祐貴; 関谷 正徳; 丸山 浩高; 岡田 隆雅; 森 尚義; 間瀬 隆弘

doi:10.3919/jjsa.70.2637

Abstract

We report a case of breast myofibroblastoma in a 53-year-old female hospitalized for further examination of the left breast tumor which she noticed 3 months previously. An elastic hard tumor located in the internal upper quadrant of the left breast was found. Phyllodes tumor was suspected based on imaging and aspiration biopsy cytology results. On excision, the tumor was found to be 2cm in diameter and had a clear surface with a thin capsule.
On histopathology, the tumor had spindle- or oval- shaped nuclei and intercellular collagenous stroma ; it was CD34- and desmin- positive but keratin- negative. Myofibroblastoma was diagnosed based on these results.

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