This is a prospective comparative study comprising 104 patients with breast cancer to which two modalities of conservative therapy were offered: quadrantectomy with mastopexy doughnut type (group QMD, n = 39) or standard quadrantectomy (group QS, n = 75). The two groups had similar tumor size, location of the tumor, histology size and PT distribution. In the QMD group the skin incision was three times greater than in the QS group, but a good healing around the areola-nipple complex was achieved without postoperative complications. Both the size of the surgical specimen and the free margins were greater in the QMD group. Free section margins were more frequently achieved in the QMD group, but the difference was not significant. Our date strongly indicate that the QMD technique can be more efficient that the QS in terms of precision of mammary tissue resection.