膀胱尿路上皮癌恶性程度分级和浸润程度分期的进展演示文稿
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WHO 1973,1999 WHO/ISUP 1998 Consensus, WHO 2004
Papilloma
Papilloma
TCC grade 1 TCC grade 2 TCC grade 3
Papillary urothelial neoplasm of low malignant potential (PUNLMP ) Urothelial carcinoma low grade
Low-grade papillary urothelial carcinomas are characterized by an overall orderly appearance but with easily recognizable variation of architectural and or cytologic features even at scanning magnification. Variation of polarity and nuclear size, shape, and chromatin texture comprise the minimal but definitive cytologic atypia. Mitotic figures are infrequent and usually seen in the lower half, but may be seen at any level of the urothelium. It is important to recognize that there may be a spectrum of cytologic and architectural abnormalities within a single lesion, such that the entire lesion should be examined, with the highest grade of abnormality noted.
Urothelial carcinoma high grade
wk.baidu.com
历史发展和演变
WHO 1973 Classification 1973年WHO提出,方法简单,便于分类, 主要是根据肿瘤细胞核间变的程度,将膀 胱尿路上皮癌分为3级,分化良好、中度分 化和分化不良,用grade 1、2、 3或grade Ⅰ、 Ⅱ、Ⅲ分别表示。目前仍然广泛使用 (WHO1999相同)。
膀胱尿路上皮癌恶性
程度分级和浸润程度 分期的进展演示文稿
(优选)膀胱尿路上
皮癌恶性程度分级和 浸润程度分期的进展
主要分期(Stage)和分级(Grade)标准
Grade Bergkvist分级法
1965 改良Bergkvist法[7]
(1987)
世界卫生组织(WHO)
WHO 1973
WHO/ISUP 1998 Consensus
WHO 1999
WHO 2004
Stage 国际癌控制中心UICC
( Union International Contre le Cancer,1998, 2002) 的TNM分期法为 标准 [3,4]
美国Jewett-StrongMarshall分期法 (AJCC)
膀胱尿路上皮癌的组织学分级
Urothelial Papilloma
Urothelial papilloma is defined as discrete papillary growth with a central fibrovascular cores lined by urothelium of normal thickness and cytology. There is no need for counting the number of cell layers. 散在的乳头状肿瘤,其中央有中心纤维血管核 心,排列着正常厚度,正常细胞的尿路上皮。 不需计数细胞的层次。
历史发展和演变
1998年,世界卫生组织(WHO)和国际泌尿病理 协会(ISUP)提出了非浸润性膀胱癌的新分类。 以后,2004年WHO正式出版了这一新的分类方法 (表1)。
本新分类法应用特殊的细胞学和结构学标准,对 膀胱癌的各个级别有详尽的描述。可以在网页 www.pathology.jhu.edu/bladder查到各级膀胱的说明 例证。这个分级法把尿路上皮肿瘤分为低度恶性 潜能(PUNLMP)、低级和高级尿路上皮癌。
被覆尿路的上皮统称为尿路上皮 (urothelium) 。
传统上将尿路上皮称为移行上皮[14] , 目前在 文献上和习惯上这两个名词常常交替使用。
膀胱癌的组织学分级
膀胱肿瘤的恶性程度以级(grade)来表示。 关于膀胱癌的分级,国际上有不少版本,
综合于(表1)。
Grading system
低度恶性潜能的尿路上皮癌指乳头状尿路上皮损害,乳头 状肿瘤细胞排列有序,结构轻度异常,细胞核轻度间变, 可不考虑细胞层次的数目。低度恶性潜能的尿路上皮癌比 乳头状瘤细胞层次明显多,和/或细胞核轻微增大,染色 质增多,有丝分裂相偶见,通常限于基底层。
Low-grade Papillary Urothelial Carcinoma
Papillary Urothelial Neoplasm of Low Malignant Potential
Papillary urothelial neoplasm of low malignant potential is a papillary urothelial lesion with an orderly arrangement of cells within papillae with minimal architectural abnormalities and minimal nuclear atypia irrespective of the number of cell layers. The urothelium in papillary urothelial neoplasms of low malignant potential is much thicker than in papillomas and/or the nuclei are significantly enlarged and somewhat hyperchromatic. Mitotic figures are infrequent in papillary urothelial neoplasms of low malignant potential, and usually confined to the basal layer.