Otomi Yoichi, Irahara Saho, Inoue Hiroaki, Shinya Takayoshi, Otsuka Hideki, Harada Masafumi
Tokushima University, Department of Radiology, Tokushima, Japan.
Tokushima University, Department of Thoracic and Endocrine Surgery and Oncology, Tokushima, Japan.
Mol Imaging Radionucl Ther. 2022 Jun 27;31(2):169-171. doi: 10.4274/mirt.galenos.2021.22590.
A 50-year-old female patient underwent (fluorine-fluorodeoxyglucose (F-FDG) positron emission tomography/computed tomography (PET/CT) following modified radical mastectomy for cancer of the left breast. Ten days before the PET/CT, the coronavirus disease-2019 (COVID-19) vaccine was injected intramuscularly into the right deltoid muscle. Increased (F-FDG uptake of maximum standardized uptake value (11.0) was observed in the lymph nodes of the right axilla, which had not been observed in the previous PET/CT. The size of the oval-shaped lymph nodes was up to approximately 11×9 mm; however, it was larger than that observed on the previous PET/CT. We contemplate that the increased (F-FDG uptake was a reactive change in the lymph nodes associated with the COVID-19 vaccine.
一名50岁女性患者在接受左乳腺癌改良根治术后进行了氟-氟脱氧葡萄糖（F-FDG）正电子发射断层扫描/计算机断层扫描（PET/CT）。在进行PET/CT检查的10天前，该患者右侧三角肌肌内注射了2019冠状病毒病（COVID-19）疫苗。在右侧腋窝淋巴结中观察到F-FDG摄取增加，最大标准化摄取值为11.0，而之前的PET/CT检查中未观察到这种情况。椭圆形淋巴结大小最大约为11×9 mm；然而，它比之前PET/CT检查中观察到的要大。我们推测，F-FDG摄取增加是与COVID-19疫苗相关的淋巴结反应性改变。
