交界性浆液性囊腺瘤是怎么型呈的

2025-03-13 10:25:04
推荐回答(1个)
回答(1):

交界性肿瘤是一种在良性和恶性之间的肿瘤,是指组织形态和生物学行为介于良性与恶性之间的肿瘤,也称为中间性(或中间型)肿瘤。 人体的某一种细胞发生异常增生,达到一定的数目时,形成瘤块,称为肿瘤。肿瘤通常分为良性和恶性。良性肿瘤通常不复发,不转移,预后良好。恶性肿瘤一般生长迅速,浸润广泛,经常复发,容易转移,危及生命。 其实,还有一大类在良性和恶性之间的肿瘤,称为“交界性肿瘤”。就像人不能完全用好人和坏人来区分人一样,肿瘤也存在“不恶不良”的交界性肿瘤。交界性肿瘤是客观存在的。良性肿瘤和恶性肿瘤之间界线并非绝然,良性向恶性演变是呈渐进性的,肿瘤的发生、发展均经历了良性病变进展到交界性病变然后到浸润癌的连续病理过程。因此客观上存在着一些良恶性之间的中间型肿瘤、临界性肿瘤即交界性肿瘤。如: 宫颈上皮不典型增生→原位癌→早期浸润癌→浸润癌, 子宫内膜单纯性增生→复杂性增生→不典型增生→原位癌→浸润癌, 卵巢浆/粘液性囊腺瘤→交界性浆/粘液性囊腺瘤→浆/粘液性囊腺癌。 此外,主观上难以区别良恶性的肿瘤也可称为交界性肿瘤。 交界性肿瘤是指一种低度潜在恶性肿瘤,它同时具有良性肿瘤和恶性肿瘤的一些特征,如生长缓慢,复发迟类似良性肿瘤,但他又可以发生转移,只不过转移率较低,大家都知道转移是恶性肿瘤的特征,鉴于这种肿瘤的特征处于良性和恶性之间,所以叫做交替性肿瘤。 交界性肿瘤(borderline tumor):交界性肿瘤有如下3种表现形式: 1、肿瘤细胞的形态(显微镜下所见)介于良性、恶性肿瘤之间。 2、肿瘤细胞的形态上属于良性,但呈侵润性生长,切除后易复发,多次复发后有的可出现转移。 3、肿瘤细胞的形态符合恶性,但没有明显的扩散转移等恶性表现。 ※ 扩展内容 交界性病变(borderline lesion):是指组织形态和生物学行为介于良性与恶性之间的病变。除交界性肿瘤外,交界性病变还包括恶性前病变,如鳞状上皮和腺上皮的异型增生(不典型增生或上皮内瘤变)。常见的交界性病变有子宫颈上皮内瘤变(cervical intraepithelial neoplasia,CIN)、乳腺导管上皮内瘤变(ductal intraepithelial neoplasm,DIN),子宫内膜复杂性增生等。 常见病例 卵巢:交界性浆液性肿瘤(如交界性浆液性囊腺瘤)、交界性粘液性肿瘤(如交界性粘液性囊腺瘤)、交界性透明细胞肿瘤、交界性Brenner瘤。 软组织:炎性肌纤维母细胞瘤、非典型纤维黄色瘤、上皮样血管内皮瘤。 其他:大肠腺瘤、非典型脑膜瘤,其他非典型类以及恶性潜能未定类肿瘤。 4临床意义医生应认识到交界性肿瘤的存在。如果不认识它,只知道良性、恶性肿瘤,那么,就会将交界性肿瘤人为地归到良性或恶性肿瘤中去了,出现“欠诊断”或“过诊断”的错误。 欠诊断:把交界性肿瘤归为良性肿瘤范畴,认为手术后就万事大吉了,结果几年后肿瘤复发、转移,一切都晚了。 过诊断:把交界性肿瘤归为恶性肿瘤范畴,大刀阔斧地切除器官,造成终身残废,后悔不及。 治疗:交界性肿瘤的合理治疗方法是手术切除干净,定期复查,若有变化则应及时发现、及时治疗。

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