What would the likely reason for the firm rigid painless lump in my breast? I'm not on HRT and I've gone through menopause im nearly 59? I've got my appointment for mammogram next Monday but it's annnoyed me a little that they don't give results on the day? I've had this hard rigid lump for nearly 3 months so I can't believe I will have to wait for 2 weeks for results, anyway do post menopausal women get breast cysts or fibroadenoma's? Or are they more common in women in their early 20s and 30s?