Spontaneous Milk Fistula from an Accessory Breast – an Annoying Complication

Ectopic breast tissue presents as solitary or multiple masses in young woman along the milkline. Ectopic axillary breasts are the most common variant of supernumerary breast tissue. Accessory breasts can present in a number of ways like fibrocystic disease, fibroadenoma, mastitis etc., but the incidence of milk fistulas in them is very, very rare. We encountered an interesting case of a 23-year-old lactating female in whom a left axillary accessory breast was associated with a milk fistula of spontaneous origin. When the milk leak did not stop with conservative treatment, suppression of lactation was done followed by excision of the axillary accessory breast to prevent this complication in future pregnancies and lactation.