Abstract
COVID-19 vaccines have received authorization worldwide. Vaccines are typically administered to the deltoid muscle, and axillary swelling/tenderness at the first dose (11.6%) and the second dose (16%) have been reported as secondary effects. Regional lymphadenopathy in the axilla and supraclavicular region has also been reported with a prevalence of 1.1% and is referred to as COVID-19 vaccine-associated lymphadenopathy (VAL). COVID-19 VAL mimics lymph node (LN) metastases on magnetic resonance imaging, ultrasound, and 18F-fluoro-2-deoxy-Dglucose positron emission tomography. Although several specific findings of VAL on clinical imaging have been reported, the difficulty in differentiating between VAL and LN metastases could lead to false-positive or -negative diagnoses. Here, we report a case of breast cancer with ipsilateral VAL with multimodal imaging including 3D T2-weighted imaging, a new magnetic resonance imaging technique, and discuss the future perspective for differentiating between VAL and LN metastases.
【저자키워드】 COVID-19, Breast cancer, MRI, Lymph node metastases, Vaccine-associated lymphadenopathy, 【초록키워드】 COVID-19 vaccine, magnetic resonance imaging, tomography, Prevalence, False-positive, Lymph node, second dose, first dose, Perspective, diagnoses, Administered, Regional, Effects, reported, ipsilateral, 【제목키워드】 Patient, High-resolution,