Objective:To discuss the application and clinical significance of quadrantectomy in the treatment of mass-typed breast cystic hyperplasiacombined with mastoptosis. Methods:The patient was in a standing position. The incision was designed in the following steps:Firstly found the location of the new nipple,from the sternum in 19-21cm and midline 9-11cm,draw the location of the new nipple,then draw an circle(3. 5-4. 0cm in diameter)with the originalew nipple as its center. A rim of epidermis between the tangent,and deep subcutaneous tissue was dis-sected,and the lesion with cystic hyperplasia was resected. The rest breast tissue was then re-approximated and mas-topexy was performed. Results:From January 2007 to June 2012,22 patients with cystic hyperplasia combined with mild to severe mastoptosis were operated by this method in our hospital. After surgery it produced satisfactory cosmetic breast contour,normal blood supply and sensory function of nippleareola complex,and unnoticeable scar. Conclusion:For the benign breast lesions with mild to severe mastoptosis which require surgery,the surgeon can both excise the le-sion and perform mastopexy through quadrantectomy. The operation is simple and the outcome is satisfactory.%目的：探讨乳腺象限切除法在肿块型乳腺囊性增生症伴乳房下垂治疗中的应用及其意义。方法：患者取直立位设计切口：先确定新乳头的位置：距胸骨上窝19-21cm、正中线9-11cm，画出新乳头的位置；以原、新乳头为中心，画出直径为3.5-4.0cm的环；之后，去除两圆切线之间的表皮，广泛分离乳房皮下组织，切除囊性增生病变、肿物，并将剩余乳腺组织塑形、悬吊。结果：治疗重度乳房下垂的乳腺囊性增生症患者共22例，术后乳房外形满意，乳头、乳晕血供和感觉良好，瘢痕不明显，效果良好。结论：对于需要手术的乳腺良性病变且伴有重度乳房下垂的患者，采用象限切除法既可切除病变，又可悬吊乳房，操作简便，效果满意。
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