A 7.9 x 5.9 mm well defined hypoechoic nodule on left side of the breast

[adnananwar]

my wife have A 7.9 x 5.9 mm well defined hypoechoic nodule on left side of the breast . is it dangerous .  my mother in law and mother of mother in law both died with breast cancer. so me and my wife we both worried about my wife health issues.

[zouzi]

Hi,
A well-defined nodule is generally considered a feature more indicative of a benign lesion. This could very well be a cyst or a Fibroadenoma (Both benign). However the Radiologist also examines other features, such as vascularity, shadowing etc., which need to be evaluated to form a complete assessment of the lump. If you and your wife are overly concerned, because of her family history of breast cancer, you could discuss with her Doctor if a fine needle aspiration could be needed for pathology study.
If a biopsy confirms that it's indeed a simple cyst or Fibroadenoma, then you and your wife have nothing to worry about.
Best wishes...