I am 47 and perimenopausal. Have always had dense fibroid breast tissue. 2 biopsies negative for cancer in last 5 years. Don't notice any rashes or breast discoloration or nipple change only that left breast is much larger. No nipple discharge. Have never had children. Keep seeing inflammitory breast cancer as only reason why one breast would suddenly grow larger. Can it be hormonal? Glandular? Anything besides cancer? What would be best way to diagnose if IBC? Mother died of liver cancer. Don't know family history of breast cancer.