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超声诊断幼儿乳腺分泌性癌1例

Chinese Journal of Ultrasound in Medicine(2019)

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Abstract
患儿女,3岁.主因“发现左乳肿物3个月余”入院.查体:左侧乳腺乳头旁可触及约20 mm×20mm的质韧肿物,边界清,活动度差,无压痛,乳头无凹陷及溢液,皮肤无红肿及橘皮样变,无乳房表面皮肤改变.双侧腋窝及锁骨上下未触及肿大淋巴结. 超声彩色检查示(图1~2):左侧乳腺乳头旁见一大小约25 mm×26 mm×18 mm囊实性混合回声,形态规则,呈椭圆形,平行于皮肤,边缘不光整,后方回声无改变,未见明显粗大及微小钙化,实性部分见丰富血流,探及动脉频谱,RI 0.83.超声诊断:左侧乳腺占位性病变(BI-RADS 4B类).行左乳保乳、前哨淋巴结活检术.术后病理示:(左侧乳腺)幼年性乳腺分泌性癌,前哨淋巴结阴性.免疫组化:ER(一),PR(一),Ki67(20%+),S-100(+).基因检测:ETV6-NTRK3基因发生融合.
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