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乳腺癌的手术选择有多种,医生会根据具体情况做出针对性选择,例如,有些病灶可以通过保乳手术既精准切除肿瘤又保留乳房外观和功能,通过前哨淋巴结活检可能可以免于腋窝淋巴结清扫,还有一些微创的腔镜技术可以不切除肋软骨即完成对内乳淋巴结的清扫。
\n\n本文就带您来了解一下乳腺癌有哪些手术方法,可能会有助于打消术前的心理顾虑,为配合手术做好准备。
\n\n如果符合保乳条件,保乳手术是乳腺癌局部治疗的最佳选择。保乳手术前医生通常会通过乳腺 X 线检查和磁共振成像(MRI)排除肿瘤多发和分别广泛的情况。
\n\n手术时,医生会在肿瘤表面皮肤做适当长度的切口,为了更加美观,在条件允许的情况下也可能采用沿着乳晕的切口。
\n\n通过皮肤的切口,医生会将肿瘤及周围的部分正常腺体完整切除,然后把切除的组织标记内、外、上、下、底五个切缘,送检快速冰冻病理检查,以确定肿瘤被完整切除没有残留。如果某一切缘阳性,医生会在该方向扩大范围切除并再次送检冰冻病理。如果仍然阳性,则表示肿瘤病变范围广泛,已不适合保乳,需要进行乳房切除。最后,医生会通过合适的方式重塑乳房外形,缝合切口,必要时留置引流。
\n\n \n\n如果肿瘤可以手术切除但是不满足保乳的条件,乳房切除会是唯一的选择。一般来讲,这类肿瘤常较大,局部分期稍晚。
\n\n手术时,医生一般做一个梭形的切口把肿瘤表面的皮肤和乳头乳晕都包括在内。如果患者有乳房再造的需求并且乳头乳晕也没有受到肿瘤侵犯,医生也会考虑保留乳头乳晕。对于有些患者,还可能采用腔镜来完成乳房切除,这时只需在胸部侧面做 3 个长 1cm 的小切口即可。
\n\n该手术仅保留皮肤下的薄层脂肪,自此直至深达肌肉(胸大肌和前锯肌)表面的整个乳房都予以切除。医生在处理淋巴结之后,一般会留置引流管,缝合切口。如果肿瘤较大、切除皮肤较多、切口无法直接缝合,可能会予以植皮。
\n\n \n\n绝大多数情况下,前哨淋巴结活检术可以精准地判断腋窝淋巴结的状态,从而可能可以避免腋窝淋巴结清扫术带来的并发症,因此,对于临床检查中没有发现有腋窝淋巴结转移者,该方法常被医生作为首选的淋巴结手术方式。
\n\n手术前,医生会在肿瘤周围或乳头乳晕区注射适量的示踪剂,对前哨淋巴结进行染色,有时会采用两种染料联合染色以便于前哨淋巴结的显示更准确。
\n\n术中,医生采用仪器或肉眼找出被染色的淋巴结,即前哨淋巴结,将其切除后送检快速冰冻病理检查。如果前哨淋巴结没有转移,则不需要进行腋窝淋巴结清扫,甚至最新研究认为,对只有 1~2 枚前哨淋巴结转移者给予腋窝放疗,与进行清扫手术的局部控制效果是等效的。
\n\n对于腋窝淋巴结有转移者,腋窝淋巴结清扫术是必要的。通过乳房或腋窝切口,在保护腋窝的神经及血管的情况下,医生会将腋窝的淋巴脂肪组织一并切除。如果怀疑锁骨下淋巴结有转移,医生会继续进行清扫。最后,医生会放置引流管,关闭切口。
\n\n常规的内乳淋巴结活检术是在上方的肋骨间切开肌肉寻找并切除淋巴结的,通常需要切断肋软骨才能完成,但是该方式会破坏胸廓的稳定性。目前,医生可以通过微创的腔镜技术在胸侧壁开 3 个小孔完成,利用胸腔镜或手术机器人系统从胸腔内完整切除淋巴结。
\n\n术后后仅需要对胸腔做引流几天,创伤小,恢复快,不会影响胸廓的完整性和稳定性。
\n\n对于乳房切除带来的乳房缺失,以及保乳手术切除肿瘤范围较大带来的乳房缺损,可以通过乳房再造手术重塑乳房外观。
\n\n在外科技术高度发展的今天,乳腺癌手术方法有了更多选择,也日趋完善、精准。作为患者,可以与医生充分沟通,选择适合自身条件和需求的手术方案(陆军军医大学西南医院乳腺甲状腺外科主治医师杨汐参与撰写)
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