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이신규,김잉곤,최회윤,류재만,조삼현 대한성형외과학회 1992 Archives of Plastic Surgery Vol.19 No.3
Accessory breast tissue is developed from persistence of breast tissue along the milk line which first beomes apparent at the 6th week of embryo and usually atrophies except for the thoracic area until the 9th week. It is much more common than amastia and occurs in approximately from 2 to 6 percent of the population. But multiple polymastia involving labia major is quite rare. We experienced one case of multiple polymastia involving labia majora & both axilla and 6 cases of polymastia & polyhelia, so we are willing to report our cases with a review of literature.