Pain and Lump in breast

Nine years ago I had a non-malignant tumor (2" in diameter) removed from my right breast.  In the last several months, I have developed a painful lump in that breast.  A mammogram and ultrasound were performed, showing a mass that did not look like a cancer.  The lump is moveable.  The outer lower side of this breast is painful to the touch.  The pain radiates to my armpit and down my hand into the palm.  My back has also started hurting.  My doctor took me off my hormone replacement to see if the pain and lump would diminsh.  (I took prempro and estratest.)  In three weeks, there has been no change.  Last night I began to bleed vaginally after intercourse.  (I have no uterus, but did have severe endometriosis prior to menopause.)  I am worried that the breast pain may be more than fibrocyctic disease.  This is a new development for me, but I was on a 5 month course of Lupron eight years ago.  Could this be breast cancer?

Paula F

[CCF-RN,MSN-JS]

Dear SF2, Painful lumps in the breast tend to be from benign (non-cancerous) causes.   If there is concern that this could be cancer the next step in determining what this mass is, would be to biopsy it.