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目的:探讨男性乳房发育症胸部结构分区的临床意义。方法:收集2012年1月至2018年12月复旦大学附属华山医院整形外科收治的687例男性乳房发育患者，年龄14～45岁，平均27.0岁。均根据术前胸部乳房相关指标测量进行Simon分类，并行手术区域设计、乳房B超检查、Derriford外表量表评估。将男性胸部分为6个区域，0区乳晕区、1区乳房凸起区、2区副乳区、3区胸侧卷区、4区下皱襞区、T区相对禁忌区。对以上区域中明显脂肪堆积隆起的分区进行脂肪抽吸，避免在区域连接处过度抽吸导致术后凹陷，最终达到各个区域过渡平整。于术前、术后1周、1个月、3个月、6个月、12个月时拍摄患者胸部正位及斜位照片，比较各结构分区术前、术后变化。于术后12个月随访时，统计患者满意度评分。结果:687例患者，按照Simon分类，Ⅰ度65例，Ⅱa度257例，Ⅱb度194例，Ⅲ度171例。术前，除了SimonⅠ度的65例患者仅表现为0区凸起，其余患者都包含有1区凸起，2～4区则在不同患者中伴随出现。经对不同分区进行脂肪抽吸及腺体剥脱旋切后，患者乳房平整，各分区过渡自然，无明显凸起及凹陷。术后1周、1个月、3个月、6个月、12个月进行术后随访，患者胸部形态稳定，无血肿、血清肿等术后并发症。术后12个月患者满意度评价结果：687例患者中，满意度10分共634例，8～9分53例，平均满意度评分9.90分。未达满分的53例患者中48例因0区及1区皮下瘢痕致局部发硬，5例因1区与T区过渡处凹陷、3区及4区局部凹陷导致外形不满意。结论:男性乳房发育症的胸部结构分区能为整形外科医生及男性患者提供简单、直观、医患认同度高的术前评估，也可为手术方式的选择提供适当、简化、精确的指导。“,”Objective:To discuss the clinical significance of structural chest zones for gynecomastia.Methods:A total of 687 gynecomastia patients, aged from 14 to 45 years old, with an average age of 27.0, were admitted to the Department of Plastic Surgery, Huashan Hospital Fudan University from January 2012 to December 2018. Simon classification was used to record. Conduct Simon classification according to the preoperative measurement of the chest. Surgical area design, photo analysis, breast ultrasound examination and Derriford appearance scale evaluation were conducted as well. Six zones can be divided as follows: zone 0 nipple-areola zone, zone 1 gynecomastia zone, zone 2 accessory-breast zone, zone 3 lateral-roll zone, zone 4 IMF(inframammary fold) zone, zone T relative-contraindication zone. Positive and lateral images of the chest were taken before and one week, one month, three months, six months, and 12 months after the operation, and the preoperative and postoperative changes of each structural zone were compared. At the follow-up of 12 months after the operation, patients’ satisfaction was counted.Results:687 patients, according to Simon classification, were divided toⅠ degreein 65 cases, Ⅱa degree in 257 cases, Ⅱb degreein 194 cases, Ⅲ degree in 171 cases. Before operation, except for Simon Ⅰ degree in 65 cases showed just raised to 0 zone, most of the rest of the patients contains 1 zone raised, 2-4 zones come in different patients. After liposuction and glandular stripping were performed in different zones, postoperative follow-up was conducted one week, one month, three months, six months, and 12 months after the operation. The dynamic observation was made of the change process of chest shape shaping during the follow-up, whether there were postoperative complications, poor local shape, or bad regional shape. Evaluation results of patient satisfaction 12 months after surgery: among the 687 patients, there were 634 patients with 10 points of satisfaction, and 53 patients with 8-9 points, including 48 patients of zone 0 and zone 1, three patients of zone 3, and 2 patients of zone 4.Conclusions:The structural chest zones of gynecomastia provides plastic surgeons and male patients with simple, intuitive, and highly recognized preoperative evaluation, which can provide appropriate, simplified, and accurate guidance for the selection of surgical methods.