The number of breast cancer patients treated with breast conservation has steadily increased in the last decade, and the number of patients that undergo complete mastectomy has decreased. Plastic surgeons tend not to be involved in primary reconstruction of partial mastectomy defects, mainly due to the perception of general surgeons that conservation therapy does not cause significant deformities. This is usually true in early follow-up prior to radiation, but in the long-term significant deformities may result after fibrosis and soft tissue sequelae of radiation have taken place. Now there are increasing numbers of patients who present for delayed partial breast reconstruction. The options for treatment of this type of deformity are limited and range from local flaps, that tend to have conspicuous scars and inadequate volume, to the latissimus dorsi myocutanous and others flaps, that have excess volume and may leave a functional donor deficit. The prospect of harvesting tissue without disrupting the fascia, muscle and innervation of the anterior abdominal wall has lead to a renewed interest in the Superficial Inferior Epigastric Artery Flap. We have had an increasing experience with the SIEA flap and have been pleased with its lack of donor site problems. Therefore a natural evolution was to apply this less invasive technique to immediate or delayed partial mastectomy reconstruction. We describe our early experience with the mini-SIEA flap in partial mastectomy reconstruction in five patients including flap weight, vessel size, operative time, hospital stay and complication rates. We suggest that improved methods of breast reconstruction have decreased the donor site morbidity and provide a new, less invasive tool that permits the plastic surgeon to become involved as part of the team in specific breast conservation cases.