You're wise to dig deeper about the change in BIRADS but also about the "chronic inflammation surrounding blood vessels" and "dilated venous structures within adipose tissue". There are easily understandable research papers on the web regarding those descriptors of breast tissue. One thing I've learned after 17 years of treatment is not to assume but to ask about everything. We are better self-advocates when we are fully informed to our satisfaction. Keeping you in my thoughts for a helpful appointment tomorrow. Good luck and let us know how it turns out.