Unexplained lump in right armpit

[lynndixy]

I have had a second mammogram and an ultrasound on a dense area in my right breast which came back as clear. All bloodwork was normal. However, the ultrasound picked up a 3 cm size pliable lump under my right armpit which has occasionally caused me discomfort but I didn't even know I had the lump because it is fairly internal and I assumed it was because I was fairly larged busted that I had discomfort. I also have juvenile rheumatoid arthritis. Any suggestions on what the lump may be? I am feeling fairly stressed as of late. Living in Canada makes everything free, but having to wait for results is excruciatinly stressful for me. I feel fine in every other way, no weight changes, fever, etc. just this stupid lump.  They will be doing a biopsy just to make sure everything is okay. Any thoughts on this would be appreciated. Thanks.

[bluebutterfly2222]

As I mentioned in my previous post, lymph nodes can become swollen for a number of reasons, and they may not return to normal size after the infection, disease, or other cause has resolved.

When a lymph node is found that excedes a certain size, it it usual practice to do an US, and in some cases to biopsy it, just to be on the safe side.

I hope your biopsy will result in a benign finding.

Please keep us posted.

Best wishes...

[lynndixy]

They have determined in fact, that it is a lymph node that is swollen. No other symptoms such as fever, abnormal blood work , etc. is present. I am hoping that it is something not serious, as I tend to fret a lot about things.

[bluebutterfly2222]

One possibility would be a lymph node, which can become enlarged for a variety of reasons.

But it is difficult to even make an educated  guess as to what the lump might be, without any information about the BI-RADS Category of your US and any information regarding what the radiologist or surgeon has told you. And of cousre, only a biopsy can provide a certain answer.

Best wishes...