乳腺癌术后腋窝^(18)F-FDG代谢增高淋巴结鉴别一例

Differentiation of ^(18)F-FDG-avid axillary lymph nodes in a patient with post-operative breast cancer

患者女,56岁,体格检查发现右乳结节,行乳腺超声及钼靶均提示乳腺恶性病变可能,拟行手术治疗,术前行18F-脱氧葡萄糖(fluorodeoxyglucose,FDG)PET/CT显像(图1)。PET/CT可见右乳内上象限代谢增高结节,大小约1.6 cm×1.4 cm,最大标准摄取值(maximum standardized uptake value,SUV_(max))7.5(图1A~1C);右侧腋窝可见数个小淋巴结,形态略饱满,短径约0.4 cm,SUV_(max)1.4;以上表现符合右侧乳腺癌。后患者行右侧乳腺癌根治术及腋窝淋巴结清扫术,术后病理示右侧浸润性乳腺癌,伴右腋窝1枚淋巴结转移,术后辅助内分泌治疗。