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http://www.ipathology.cn/forum/forum_display.asp?keyno=147152
Is there any other differential dx
abin译:
请参考http://www.ipathology.cn/forum/forum_display.asp?keyno=147152(组织细胞样型乳腺癌looks like 颗粒细胞瘤 (cqz 17))
是否有其他鉴别诊断?
tumour cells are diffusely infiltrating in the stroma. There is no obvious glandular structure. However, the cells appear cohesive and frequently clustered together. They have abundant pale blueish (more mucinous-like) cytoplasm instead of eosinophilic granular cytoplasm as in histiocytoid lobular carcinoma. Tumour cells also have ill-defined borders as opposed to lobular carcinoma. So if this is an example of lobular carcinoma, i think it is very atypical. This is a case with an usual appearance. I would consider following differentials: 1. Primary and malligant--- invasive ductal ca. 2. ? Metastatic tumur. 3. ? silicon reaction
abin译:
肿瘤细胞弥漫浸润间质,没有明显腺样结构。然而,细胞有粘附性,多见成簇聚集。胞浆丰富,蓝汪汪(很像粘液样),而不是组织细胞样型小叶癌中的嗜酸性颗粒性胞浆。肿瘤细胞边界不清楚,这与小叶癌也不同。因此,这例如果是小叶癌,我认为是一种非常不典型的病例。本例有少见形态表现,我考虑的鉴别诊断:1、原发性、恶性--浸润性导管癌。2、转移性肿瘤?3、硅胶反应?
反复看图,想寻找蛛丝马迹,Dr.zhao的病例总是那么吸引人啊!谢谢!
此例:在纤维化的背景上,见模糊的粘液样的细胞巢,并浸润在脂肪间,细胞胞界不清,粘液样,核异型性小,未见核分裂,4楼图3略有腺样排列。
1、粘液样的小叶癌?
2、组织细胞样型乳腺癌:胞浆呈细红颗粒状,浆丰富,核异型性很小。CK,E-CA、P120,CD68
3、颗粒细胞瘤:胞浆红颗粒状,内常见神经束。(看到几例,均见到神经束)CD68,S-100,Actin,VIM
4、平滑肌肿瘤粘液样变性:Actin,SMA
5、纤维组织细胞瘤?CD68,VIM
6、转移的粘液细胞肿瘤?PAS染色
7、Pacoma?HMB-45,Malen-A,Actin
8、不会还是血管相关的病变吧?
呵呵,想的太多了,可能超出范围了,不过现在需再了解病史,肿块多大?在乳腺的位置:皮下还是乳腺实质中?患者有无其他部位的病变?病变多长时间了?
此时诊断和鉴别诊断,免疫组化很重要。
以下是引用漫游人在2009-7-21 15:30:00的发言:
tumour cells are diffusely infiltrating in the stroma. There is no obvious glandular structure. However, the cells appear cohesive and frequently clustered together. They have abundant pale blueish (more mucinous-like) cytoplasm instead of eosinophilic granular cytoplasm as in histiocytoid lobular carcinoma. Tumour cells also have ill-defined borders as opposed to lobular carcinoma. So if this is an example of lobular carcinoma, i think it is very atypical. This is a case with an usual appearance. I would consider following differentials: 1. Primary and malligant--- invasive ductal ca. 2. ? Metastatic tumur. 3. ? silicon reaction abin译: 肿瘤细胞弥漫浸润间质,没有明显腺样结构。然而,细胞有粘附性,多见成簇聚集。胞浆丰富,蓝汪汪(很像粘液样),而不是组织细胞样型小叶癌中的嗜酸性颗粒性胞浆。肿瘤细胞边界不清楚,这与小叶癌也不同。因此,这例如果是小叶癌,我认为是一种非常不典型的病例。本例有少见形态表现,我考虑的鉴别诊断:1、原发性、恶性--浸润性导管癌。2、转移性肿瘤?3、硅胶反应? |
Just complete today's cases. Feel released now. for this weekend night. I will tell you some IHC before I go to home.
Thank all of you for your very reasonable discusion.
AE1/AE3 strongly and diffusely positive.
F1 S-100
F2 CD68.
abin译:
刚完成今天的病例,觉得轻松了。在这周末之夜,在回家前,先告诉大家一些免疫组化结果。
谢谢所有参与讨论的人,你们的观点非常合理。
AE1/AE3 弥漫强阳性
图1 S-100
图2 CD68