Mouse in the Axilla: A Case Series of Fibroadenoma in the Axillary Ectopic Breast Tissue—A Rare Entity

A bstract Axillary polymastia is a common variant of ectopic breast tissue (EBT) with a reported incidence of 2%–6% in women. EBT can undergo the same physiological and pathological processes as the normally located breast. Though fibroadenoma commonly occurs in the breast, it is rare in the EBT. We report a series of four cases of fibroadenoma in axillary breast tissue over past 10 years in our hospital including a giant axillary fibroadenoma , which we claim to be the largest till date in the English literature.