Doctors fear COVID-19 vaccines are messing with mammograms - Los Angeles Times

Like a sore arm or slight fever, lymph nodes enlarged by the immune system’s response to a COVID-19 vaccine are virtually always a sign that the shot vaccine is doing its job.

But to the medical specialists who scour mammograms for signs of malignancy, the unexplained appearance of swollen lymph nodes has typically sparked concern and a recommendation that the patient be called back for further testing.

The result has been new uncertainties for women and the doctors who care for them.