<prompt> Young female with painless, mobile lump of 4 cm in a breast. Diagnosis is?Breast abscessBreast cystFibroadenomaPeau dorange  <response>: Ans. c FibroadenomaRef: Sabiston 19th ed. 827 Fibroadenoma aka Breast mouse is the most common benign tumor of breast. It is MC seen in young age group females 15-30 yrs Clinically, it is slow growing, painless solitary mass, which is mobile in nature thats why known as breast mouse. IOC: FNAC Upon mammography: Popcorn calcification 