1) What is the stage of my disease?
2) How many tumors do I have, and how large are they?
3) Do I have any lymph nodes with cancer (positive lymph nodes)? If so, how many?
4) How does my having (not having) reached menopause affect my treatment?

Know your type of cancer... information provided by the Mayo Clinic.

The most common type, which accounts for about 70
percent of all breast cancers, is infiltrating (or invasive)
ductal carcinoma (IDC). It starts in a milk duct, breaks
through the duct wall and invades the breast's fatty
tissue. It can spread (metastasize) to other parts of your
body through the lymphatic system and bloodstream.

Infiltrating (or invasive) lobular carcinoma (ILC)
comprises about 10 percent to 15 percent of invasive
breast cancer. It begins in the milk-producing glands and
can spread to other parts of the body.

There are also other, rarer invasive breast cancers, most
of which tend to have a better prognosis than invasive
ductal or invasive lobular carcinoma.

Less common is carcinoma in situ, which is confined to
the ducts or lobules. Ductal carcinoma in situ (DCIS), the
most common type of noninvasive breast cancer, stays
in the ducts but does increase your risk of developing
invasive cancer. Lobular carcinoma in situ (LCIS) begins
in the lobules. Most breast specialists don't consider
LCIS a true breast cancer, but women with this condition
run a higher risk of developing an invasive cancer.