Accessory Breast on Back: A Very Rare Presentation

Ectopic breast tissue (EBT) is an uncommon congenital condition that occurs due to the incomplete regression of the mammary ridge during embryogenesis.Accessory breast tissue is most frequently found in the axilla and is usually in the region of the mammary ridge line from the axilla towards the groin.The occurrence on the back is extremely rare.Herein, a case of a 20-year female with an accessory breast on her back is presented, which was excised due to recent enlargement.The patient underwent surgical excision and had an uneventful postoperative recovery.Histopathological examination confirmed benign breast tissue without any evidence of malignancy.