Has anyone experienced a lump in the armpit that wasn't cancer when checked out? I have one that has been there for a month and it's not rock hard, but feels more soft. It started out shaped more round like a marble, but now it a different shape. When I press around the lump it seems like I feel lines, almost like maybe blood vessels that run along side the ump. I feel fine and have not had any illness before discovering the lump. I am having a MRI to check for/rule out breast cancer, but it seems to not described that type of lump. Just wondering if anyone has experienced the same type of lump i've described and, of so, what your diagnosis is/was.