With COVID-19 vaccinations picking up steam around the Bay Area, doctors are seeing more cases of lumps under armpits or near collarbones. Absent a COVID shot, swollen nodes near the breast can be ...

TORONTO, Ontario (CTV News) — As more Canadians receive COVID-19 vaccines, more and more people might encounter a side-effect that radiologists want the public to be more aware of — swelling ...

Breast cancer remains a significant global health concern, with a high number of new cases and deaths reported annually.

Second, don’t panic if you’ve recently been vaccinated and you feel a strange lump under your arm, near your armpit or on your neck. The COVID vaccine does cause lymph nodes to swell.

Tender, swollen lumps developed under her left armpit, along with a large swelling above her collarbone -- all areas where there are lymph nodes, the body's filters for germs.

Tender, swollen lumps developed under her left armpit, along with a large swelling above her collarbone — all areas where there are lymph nodes, the body’s filters for germs.

Swollen lymph nodes in the armpit would show up on any CAT scan of the chest, as well as ultrasounds and MRIs of that region, not merely on mammograms done during breast cancer screenings.