卵巢癌扩散转移途径是什么

2025-02-27 15:12:39
推荐回答(5个)
回答1:

卵巢癌是较易扩散转移的肿瘤,因早期不易重视,一般确诊时大部分已到了晚期。一般来说,卵巢癌扩散转移有局部扩散、腹腔种植、淋巴转移与血行转移等途径,其中以腹腔种植和淋巴转移最为重要和常见。一、血行转移:血行转移不常见,一般为卵巢癌细胞直接进入血管,血流浸入远处器官而形成。另一途径则是癌细胞先进入淋巴管形成淋巴转移,然后再进入血管形成血行转移。二、局部扩散及表面种植卵巢癌局部扩散转移的方式主要通过接触性浸润及直接蔓延。癌细胞穿破卵巢包膜或外生型癌细胞脱落,使之散落在盆腔内。最常见受累部位为输卵管、子宫、膀胱、直肠、乙状结肠及其他盆腔腹膜等。盆腔腹膜是卵巢癌最常种植的部位,以子宫直肠陷凹最为多见,肝表面、膈肌下、肠系膜表面、肠壁、大网膜及各壁腹膜等均有转移灶。1、腹膜:广泛的腹膜种植是腹水的主要来源。广大面积的盆腹腔腹膜及脏器浆膜都可被卵巢癌细胞种植播散,特别是在横膈、结肠侧沟、肠系膜、肠浆膜、膀胱浆膜及子宫直肠凹。种植和播散的癌灶呈细小颗粒状,或结节状,或大小不等的团块。2、子宫及附件:子宫是卵巢最邻近而又密切相关的器官,在卵巢上皮性肿瘤有16%~18%伴有子宫的转移,而在恶性生殖细胞肿瘤 ,则子宫受累的机会较少。卵巢上皮性癌,特别是浆液性癌有相当高的双侧性,达60%。即使在对侧卵巢外观正常时,也可有2%~18%的阳性率。在恶性生殖细胞肿瘤,除无性细胞外,双侧性的机会不足5%。卵巢癌瘤的浸润生长,常造成子宫和双附件形成浑然一体的局面。 3、肠道:卵巢癌的肠转移常见且后果严重,肠道扩散转移及继发而至的肠梗阻是卵巢癌患者死亡的的主要原因。肠转移多为盆腔癌瘤的直接侵犯,尤以直肠、乙状结肠占95.2%。阑尾转移亦常见。4、大网膜:卵巢恶性肿瘤,特别是上皮癌有很高的大网膜扩散转移率,约23%~71%。有时大网膜外观正常而镜检已有转移癌。大量卵巢癌瘤转移至大网膜可形成巨大的团饼,使病人有腹胀、腹痛及沉重感,并影响腹腔化疗。5、肝脾:肝脾表面常有细小的种植结节,有时在横结肠的肝曲和脾曲有卵巢癌瘤扩散转移并与肝、脾粘连,或向肝、脾侵入。三、淋巴转移淋巴转移也是卵巢癌的重要扩散转移途径之一,主要有三条途径:1、沿卵巢血管向上终止于腹主动脉旁淋巴结,位于腹主动脉及肾动脉之间,称为上行路线。 2、淋巴管从卵巢门出来在阔韧带两叶之间,终止于髂内、髂外及髂间淋巴结,称为下行路线,再经髂总而至腹主动脉旁淋巴结。当上行的路受阻时,淋巴液可反流至盆腔淋巴结或形成侧支循环。一般情况下,上、下行路线同时存在。3、卵巢淋巴管沿圆韧带,引流人髂外淋巴结及腹股沟淋巴结,此转移途径比较少见。

回答2:

卵巢癌的转移途径有下面几个方面:1.血行转移:卵巢恶性肿瘤除肉瘤、恶性畸胎瘤及晚期者外,很少经血行转移。一般远隔部位转移可达肝、胸膜、肺等部位。2.淋巴转移:转移到盆腔淋巴结最常见,也可转移全身各处淋巴结。3.种植转移:可穿破包膜、肠管等处,形成大量的结节状或乳头状的转移癌。4.直接蔓延:可蔓延到相邻的器官和组织。要定期观察,定期复查,密切监测疾病,及时发现。

回答3:

  • 卵巢癌的转移途径有下面几个方面:1.血行转移:卵巢恶性肿瘤除肉瘤、恶性畸胎瘤及晚期者外,很少经血行转移。一般远隔部位转移可达肝、胸膜、肺等部位。2.淋巴转移:转移到盆腔淋巴结最常见,也可转移全身各处淋巴结。3.种植转移:可穿破包膜、肠管等处,形成大量的结节状或乳头状的转移癌。4.直接蔓延:可蔓延到相邻的器官和组织。要定期观察,定期复查,密切监测疾病,及时发现。

回答4:

卵巢肿瘤是一种较为复杂肿瘤,全身各处的肿瘤都可以在卵巢有所表现,但是绝大部分的卵巢肿瘤为良性,最常见的为畸胎瘤,或称为卵巢囊肿,且年轻的妇女也会发生卵巢巧克力囊肿,但并不一定属于卵巢肿瘤。

回答5:

癌细胞穿破卵巢包膜或外生型癌细胞脱落,使之散落在盆腔内。最常见受累部位为输卵管、子宫、膀胱、直肠、乙状结肠及其他盆腔腹膜等,可尝试nk细胞回输

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