I had an estrogen receptor breast tumor removed last year followed by radiation. I am on an aromatase inhibitor for a little over a year now. My six month checkup found a questionable lump which, after biopsy, was found to be scar tissue. My annual checkup was just completed and consisted of MRI and mammogram, which were clear, but I had no ultrasound, which I've always had prior to cancer diagnosis due to dense breasts. They said the U/S is more if they found something on MRI or mammo, but I thought I read all three tests (MRI/Mammo/US) can reveal different things so I question why an U/S wouldn't be done given my history. Secondly, I had an annual physical with my GP who did a complete blood panel, but I've never had my hormone levels checked, yet I'm on an AI and had an estrogen based tumor. Is this consistent with others' experience? TIA.