Unilateral supernumerary axillary breast secreting milk: A case report

Abstract

Accessory breast tissue or ectopic breast tissue or supernumerary breast tissue is an aberration of normal breast development. It is known to be rare entity which occurs in 0.4 - 6% of women anywhere along the embyologic mammary streak or milk line but more common in axilla. Accessory breast cancer is a rare entity with incidence of around 0.2 - 0.6 %. Routine mammography can miss accessory breast tissue. It is generally bilateral may be unilateral occasionally. General lack of awareness of accessory breast cancer among clinicians has potentially dangerous implications. Knowledge about Accessory breast tissue has important implications for the patient care. If accessory breast tissue is not recognised, then a normal variant may be misdiagnosed as an abnormal lesion like lipoma, lymphadenopathy, sebaceous cyst, vascular malformation and malignancy. Also if surgical treatment is required it needs appropriate operative and post operative management.