After vaccination for COVID-19, it is possible to develop enlarged axillary lymph nodes on the injection side. Though uncommon, these can be mistaken for cancerous lymph nodes, associated with breast cancer. Enlarged nodes developing after vaccination does not mean that there is anything wrong. On the contrary, it is just the vaccine “doing its thing.” To eliminate any confusion, the Society of Breast Imaging recommends that women consider scheduling their mammogram either before taking their first COVID-19 vaccine dose or 4-6 weeks after taking the second dose.
Alan Stolier
