Hi,Dear,Welcome with your query to HCM.
Studied your query in full depth of its details.Reviewed it in context of your health concerns.
Based On the facts, You mostly seem to suffer from-
Benign Breast lump as its well defined and you are breast feeding as your USG report and your doctors assurance of it being non -cancerous.Hence You should not worry for it being cancerous.
Treatment-
Repeat USG after 6 mths time as the current size is small.
As breast feeding itself reduces the risk of
Breast Cancer -by 80% You need not worry for it being cancer.
CT Scan and
Mammography after 6 mths would decide if CT guided FNAC would be needed.
In the mean while-Take care of the Nursing baby and breast feeding of the baby.
Till the time it is proved to be Cancerous Don't worry at all for it being Cancerous Lump in you breast.
Second Opinion From breast Surgeon would help you to relieve your worry in this scenario.
Hope that ,This reply would help you to plan further treatment soon with your treating doctors.Best of Luck and early recovery.
Welcome any further query in this regard,which would be replied in next
session.
Good Day!!
Dr.Savaskar M.N.
Senior Surgical Specialist