I am a 45 yr old female that had a breast ultrasound done and a a hypoechoic lesion about .6 x .5 was found at 1:00 position in the right breast. I It does not demonstrate clear through-transmission. It is lobulated and outlined, has fine internal echoes and it's wall is minimally irregular. No intramural soft tissue nodule seen. My breast have many lumps and cysts and very dense tissue so mammograms are often hard to see well. Alll the other cyst are well defined and regular shaped w clear fluid. My mother had same problems and one finally came out cancerous in her early 40's, but not in lymphs. She also had it come back over 10 yrs later in her lung. The radiologist thought I could wait 2mo and have it rechecked at that time since it is so small. I don't know if I feel comfortable waiting and wondered about another opinion to see if I should try and have a biopsy or removal now.