These include the armpits, neck, groin, upper abdomen, and mediastinum (the area between the lungs that contains all the principal organs of the chest). Swollen lymph nodes in the armpits ...

But they will remove a small part of the chest muscle only if the cancer is near or touching the muscles. During your surgery, they may also take out 1 or more lymph nodes from your armpit. We’re ...

Underarm pain may also be the result of a specific cancer treatment, such as lymph node removal or mastectomy. Anyone noticing texture changes or lumps in their chest or breast tissue should seek ...