Hi,
You took hormone replacement therapy (HRT), and have recently been detected to have breast malignancy. (?carcinoma, ?lymphoma). You want to know if this is attributable to the hormones you took.
Let us review the results of two large studies that investigated the link between HRT and breast cancer.
The Womens Health Initiative (WHI) trial included over 16,000 postmenopausal women on hormonal therapy. The trial was stopped in 2002 when data showed an increase in risk of breast cancer, stroke, MI, and deep vein thrombosis. There was a lower risk of fracture and colorectal cancer among those who took HRT.
The Million Woman Study too reached a similar conclusion - hormone replacement therapy causes a slight increase in breast cancer. Such cancers were, however, of earlier stage, lower grade, better differentiation, and were associated with better outcomes than breast cancers detected among women not taking HRT.
An excellent review on the subject is available at:
http://www.emasonline.org/content/PDF/The%20Million%20Women%20Study%20and%20breast%20cancer.pdf
Lymphoma is not known to be associated with HRT.
All the best.
Detailed answer for your question: Available in paid version. - Click to pay.
Second opinion from another doctor: Available in paid version. - Click to pay.