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性别 | 女 | 年龄 | 67 | 临床诊断 | 转移癌?淋巴瘤? |
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一般病史 | 左腋窝肿物4个月,腋窝、颈部、腹股沟等淋巴结肿大,直径1~3cm。 | ||||
标本名称 | 左腋窝淋巴结。 | ||||
大体所见 | 左腋窝淋巴结,3x2cm,灰红色,质细软。 |
免疫组化标记:
这个病例是典型的BCL-2 negative Follicular lymphoma, low grade. 如果看多了,就会知道诊断要点在哪里。我先卖个关子,因为我经常收到这种病例,误诊经常发生。其实看多了,不需要做B cell gene rearrangemnent 来确诊。
多谢!
changyuemd 离线
drmagician 离线
I agree with some of above experts' opinion. 1. BCL6 stain will help; 2. "有无结缔组织病史?eg.类风湿性关节炎等?用药史" is important. any history of autoimmune disease, HIV, EBV positive? 3. I would consider it as an atypical lymphoid proliferation at this moment instead of a follicular lymphoma.
what don't support follicular lymphoma are: 1. H&E figs: intact mantle zone. 2. the follicles in H&E fig 7 and other figs appears to have many tangible-body macrophages (unusual for low-grade FL). 3. bcl2 negative (unusual for low-grade FL). 4. CD21 and ki-67 pattern is somewhat like a reactive follicle invaded by something from outside the follicle. 5. in IHC Fig 11, the contour of the follicle revealed by bcl2 stain is more typical for florid hyperplasia observed in autoimmune disease, drugs, HIV...and other reactive conditions. 6. there are a lot of follicular T-cells within follicles (might be a hint of etiology?).
xiaofeng1008 离线
snowman103cn 离线