Loading…
skip to main content
Logo

乳腺癌进展与分期

ID: ANS00365chis
医学动画文字记录:乳腺癌的分期是指疾病进展的程度。癌症的分期取决于几个因素,包括肿瘤的大小、是否有淋巴结转移、癌症是浸润性还是非浸润性的,以及癌症是否已经转移到乳腺以外的区域。0期乳腺癌被认为是非浸润性乳腺癌。没有证据表明癌细胞已经转移到乳腺导管或小叶以外的邻近组织。Ⅰ期被认为是浸润性乳腺癌的早期阶段。肿瘤的直径不超过2厘米,没有证据表明癌细胞已经转移到乳腺以外。Ⅱ期分为IIA和IIB两个亚期。IIA期是指肿瘤直径最大2厘米,已经转移到腋下淋巴结的浸润性乳腺癌,或直径2 ~ 5厘米,但没有转移到淋巴结的浸润性乳腺癌。IIB期稍有不同,肿瘤在2 ~ 5厘米,并已转移到腋下淋巴结。或者肿瘤大于5厘米,但还没有转移到腋下淋巴结。III期被认为是局部晚期癌症,分为IIIA、IIIB和IIIC三个亚期。IIIA期乳腺癌有两种主要情况:一个是肿瘤直径超过5厘米,但已经转移到腋下淋巴结,这些淋巴结彼此生长粘连,形成团块。癌细胞也可能已经转移到胸骨附近的淋巴结。IIIA期的第二种情况与此非常相似,只是肿瘤直径大于5厘米,腋下淋巴结没有相互粘连或与其他组织粘连。与其他分期不同,IIIB期肿瘤可以是任何大小,并已转移到乳房或胸壁的皮肤。这一期也可能发生乳房皮肤肿块或乳房肿胀。ⅢC期的肿瘤也可以是任何大小,但已经转移到锁骨上方或下方的淋巴结、胸壁和/或乳房皮肤。Ⅳ期被认为是远处转移癌,这意味着癌症已经转移到身体的其他器官和部位。

Nucleus Medical Media Disclaimer of Medical and Legal Liability

Nucleus Medical Media ("Nucleus") does not dispense medical or legal advice, and the text, illustrations, photographs, animations and other information ("Content") available on this web site is for general information purposes only. As with any medical or legal issue, it is up to you to consult a physician or attorney for professional advice. YOU SHOULD NOT DISREGARD PROFESSIONAL MEDICAL OR LEGAL ADVICE BASED ON CONTENT CONTAINED ON THIS WEB SITE, NOR SHOULD YOU RELY ON THE CONTENT ON THIS WEB SITE IN PLACE OF PROFESSIONAL MEDICAL OR LEGAL ADVICE.

NUCLEUS DISCLAIMS ALL RESPONSIBILITY AND LIABILITY FOR ANY COUNSEL, ADVICE, TREATMENT, DIAGNOSIS OR ANY MEDICAL, LEGAL OR OTHER INFORMATION, SERVICES OR PRODUCTS THAT YOU OBTAIN BASED ON VIEWING THE CONTENT OF THIS SITE. THE INFORMATION ON THIS WEB SITE SHOULD NOT BE CONSIDERED COMPLETE OR SUITABLE FOR ANY PURPOSE WHATSOEVER.

Mature Content Disclaimer: Certain Content on this web site contains graphic depictions or descriptions of medical information, which may be offensive to some viewers. Nucleus, its licensors, and its suppliers disclaim all responsibility for such materials.

close