U.S. doctors online nowAsk doctors free
A 58-year-old female asked:

I have breast cancer idc her- er+ 100% pr+90% on anastrozole 3 months. tumor 29x23x23 round solid mass then at 3 month 24x18x18mm now irregular solid mass. why would it be irregular now and is anastrozole working?

1 doctor answer2 doctors weighed in
Dr. Hiep Le
Dr. Hiep Leanswered
Nephrology and Dialysis 44 years experience
When the tumor shrinks the border should become irregular. Furthermore, most malignant lesion has irregular border anyway. The tumor gets smaller after three months of anastrozole so you seem responsive to the endocrine therapy but you have to discuss with your oncologist for further detail and plan.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Sep 30, 2021


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.