<prompt> Recently delivered female with a shiny mass in the breast with feverBreast abscessFibro adenosisSebaceous cystFibroadenoma  <response>: Ans. a Breast AbscessRef Bailey and Love 866 MC organism causing breast abscess - Staphylococcus aureus It is due to ascending infection of a sucking Baby Treatment is by Antibiotics and ID if not resolved in 48 hours 