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详细病例图片及免疫组化敬请链接:
http://www.ipathology.cn/channel/detail/name/bbs/article/405192.html
Cycin D1(+)、Ki-67 80%(+)、CD5(-)、Bcl-2(-)、Bcl-6(-)、CD20(+)、CD79a(-)、MUM-1(-)、CD10(-)、CD23(-)、CD3(-)、CD4RO(-)、CD45(+)、CK(-)。
免疫组化结果让人很是纠结,还请专家赐教!感谢!
昨天我也遇到了一例cyclinD1阳性的大B细胞淋巴瘤,因为细胞形态更倾向DLBCL,加上免疫组化bcl6+,CD5-,不支持套细胞淋巴瘤,母细胞变型,最后还是考虑出cyclinD1阳性的弥漫大B细胞淋巴瘤,这一例的ki-67也很高,70%左右,和楼主的病例接近,cyclinD1阳性的弥漫大B细胞淋巴瘤增殖指数高,是否也是其预后差的一个指针呢?另外,第一次遇到这样的病例,心里没底,想咨询专家还需要进一步做哪些工作?谢谢,再细读了一遍帖子后,心里又打鼓了,因为本例也是bcl2+
FISH是金标准。
对大B而言,
目前,没有证据显示cyclinD1有预后意义。
昨天我也遇到了一例cyclinD1阳性的大B细胞淋巴瘤,因为细胞形态更倾向DLBCL,加上免疫组化bcl6+,CD5-,不支持套细胞淋巴瘤,母细胞变型,最后还是考虑出cyclinD1阳性的弥漫大B细胞淋巴瘤,这一例的ki-67也很高,70%左右,和楼主的病例接近,cyclinD1阳性的弥漫大B细胞淋巴瘤增殖指数高,是否也是其预后差的一个指针呢?另外,第一次遇到这样的病例,心里没底,想咨询专家还需要进一步做哪些工作?谢谢,再细读了一遍帖子后,心里又打鼓了,因为本例也是bcl2+
chenliu0552 离线
金主任列出CYCLIND1阳性的B细胞淋巴瘤,我也锦上添花,贴一篇T细胞淋巴瘤的文献,今天遇到1例皮肤cyclin D1阳性的原发性T细胞淋巴瘤。
Skin Tumour Unit, St John's Institute of Dermatology, St Thomas' Hospital, King's College, London, UK. mxmayo@yahoo.co.uk
Upregulation of cyclin D1/B-cell leukemia/lymphoma 1 (CCND1/BCL1) is present in most mantle cell lymphomas with the t(11;14)(q13;q32) translocation. However, little is known about the abnormalities of CCND1 and its regulator RB1 in primary cutaneous T-cell lymphomas (CTCL). We analyzed CCND and RB status in CTCL using fluorescent in situ hybridization (FISH), immunohistochemistry (IHC), and Affymetrix expression microarray. FISH revealed loss of CCND1/BCL1 in five of nine Sézary syndrome (SS) cases but gain in two cases, and RB1 loss in four of seven SS cases. IHC showed absent CCND1/BCL1 expression in 18 of 30 SS, 10 of 23 mycosis fungoides (MF), and three of 10 primary cutaneous CD30+ anaplastic large-cell lymphoma (C-ALCL). Increased CCND1/BCL1 expression was seen in nine MF, seven C-ALCL, and six SS cases. Absent RB1 expression was detected in 8 of 12 MF and 7 of 9 SS cases, and raised RB1 expression in 7 of 8 C-ALCL. Affymetrix revealed increased gene expression of CCND2 in four of eight CTCL cases, CCND3 in three cases, and CDKN2C in two cases with a normal expression of CCND1 and RB1. These findings suggest heterogeneous abnormalities of CCND and RB in CTCL, in which dysregulated CCND and RB1 may lead to impaired cell cycle control.
1. Semin Diagn Pathol. 2011 Aug;28(3):245-55.
Mantle cell lymphoma: recent insights into pathogenesis,
clinical variability,and new diagnostic markers.
Sander B.Division of Pathology, Department of Laboratory Medicine,
Karolinska Institutet,
Stockholm, Sweden. birgitta.sander@ki.se Mantle cell lymphoma (MCL; previously called centrocytic
lymphoma or lymphocytic lymphoma of intermediate differentiation) is a distinct
subtype of B-cell lymphoma, accounting for approximately 3%-10% of all lymphoma
diagnoses. The name refers to the growth pattern in early disease presentation
resembling the normal mantle zone that surrounds the germinal center of the
B-cell follicle. The hallmark of MCL is the t(11;14)(q13;q32), resulting in
aberrant expression of the CCND1 gene and expression of cyclin D1 in the tumor
cells. Expression and genomic profiling of MCL have provided new insight into
the pathogenesis and will be summarized in this review. Pitfalls in the differential diagnosis versus
B-cell chronic lymphocytic leukemia, B-cell prolymphocytic leukemia, cyclin
D1-positive diffuse large B-cell lymphoma, hairy cell leukemia, and plasma cell
tumors will be discussed, including the usefulness new diagnostic
markers SOX11 and CD200. In situ MCL, MCL with an indolent clinical course, and
cyclin D1-negative MCL are other topics of this review.
2. Leuk Lymphoma. 2011 Mar;52(3):458-66. Epub 2011 Feb 1.
Cyclin D1 positive diffuse large B-cell lymphoma is a post-germinal center-type lymphoma without alterations in the CCND1 gene locus.Vela-Chávez T, Adam P, Kremer M, Bink K, Bacon CM, Menon G, Ferry JA, Fend F, Jaffe ES, Quintanilla-Martínez L.
Institute of Pathology, University of Tübingen,
Comprehensive Cancer Center,Tübingen, Germany.
Comment in Leuk Lymphoma. 2011 Mar;52(3):358-9.
The aims of this study were to analyze the incidence and
morphology of cyclin D1+ DLBCL and cases of Richter transformation (RT), and to
elucidate possible molecular mechanisms of cyclin D1 overexpression.
Seventy-two cases of de novo DLBCL and 12 cases of RT were included in this
study. Cyclin D1 positivity was found in 10/66 (15%) cases of unselected de
novo DLBCL and in 2/11 (18%) cases of RT. Seven independently identified cases
of cyclin D1+ DLBCL, including one RT, were added to the study. Centroblastic
morphology was found in 17/19 (89%) cases of cyclin D1+, most with a
post-germinal center phenotype (CD10-, BCL6+, MUM1+). No alterations in the
CCND1 gene indicative for a translocation t(11;14) were identified by FISH.
Analysis of the MYC locus yielded gene copy alterations in five cases and no
disruption of the gene locus in any case, suggesting an alternative mechanism
of cyclin D1 deregulation.
3. J Clin Pathol. 2009 Sep;62(9):855-7.
Cyclin
D1 positive follicular lymphoma. Olsen B, Srkalovic G, Law M, McPhail E.
Ingham Regional Medical Center, Lansing, Michigan 48910,
USA.brian.olsen@irmc.org
Erratum in J Clin Pathol.
2009 Nov;62(11):1056. Hall, M [corrected to Law, M].This report describes an unusual case of cyclin D1
expression by an otherwise typical follicular lymphoma, of low histological grade.
BCL2-IGH and CCND1-IGH fusions were identified by interphase fluorescence in
situ hybridisation.
4. Appl Immunohistochem Mol Morphol. 2009 May;17(3):255-8. CD5 negative, Cyclin D1-positive diffuse large B-cell lymphoma (DLBCL) presenting as ruptured spleen. Teruya-Feldstein J, Gopalan A, Moskowitz CH. Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA. feldstej@mskcc.org
We present a case of diffuse large B-cell lymphoma CD5
negative, Cyclin D1 positive presenting as ruptured spleen in a 63-year-old man
requiring emergent splenectomy. Tumor cells showed marked pleomorphism,
anaplasia, and increased mitotic figures with positive Cyclin D1, BCL6, MUM1,
P53, and a high MIB1 proliferative fraction. The patient received multiple
therapies and ultimately died. This case raises the differential diagnoses of
pleomorphic mantle cell lymphoma and other aggressive lymphomas with
pleomorphic, anaplastic, and Reed-Sternberg-like cells.
5. Histopathology. 2008 Jun;52(7):900-3. Cyclin
D1-positive diffuse large B-cell lymphoma.
Rodriguez-Justo M, Huang Y, Ye H, Liu H, Chuang SS, Munson P, Prada-Puentes C,Kim I, Du MQ, Bacon CM.
1. 关于套细胞淋巴瘤(MCL)的免疫表型问题,WHO第4版有如下描述:
1) They are usually positive for CD5, FMC-7 and CD43.
2) Aberrant phenotype have been described, sometimes in association with blastoid /pleomorphic variants, including absence of CD5 and expression of CD10 and BCL6.
3) All cases are BCL2 protein positive and almost all express cyclin D1, including the minority of cases that are CD5 negative (page231).
根据以上WHO描述,BCL2+对MCL中的诊断是须考虑的。即使如xclbljys老师所引用专著描述的90%,至少BCL2阴性诊断MCL也需十分谨慎。
2. cyclin D1最常见于MCL, 但也可见于DLBCL,B-CLL毛细胞白血病,浆细胞淋巴瘤等,因此不能成为否定DLBCL的依据。关于这一点已有众多文献报道,也有被WHO引用的文献。
3. 在DLBCL中表达可以是局灶性也可以是弥漫,以弱阳为主但也有强阳的病例。已有著者将CD5-,cyclin D1+的DLBCL做为一个亚型发表论文(ref.1,2),虽尚未能在病理界得到一致认可,但至少说明cyclin D1+的DLBCL需值得注意。
4. 胃可以发生MCL,但DLBCL应该更多见. HE形态学:本例肿瘤细胞弥漫分布,核大,与DLBCL的定义并不矛盾;而套母一般对核分裂像有更高的要求;另外本例除肿瘤细胞,背景细胞较复杂,不太符合MCL的特点。如果本例镜下仔细查找可能还是可以找到淋巴上皮内病变的。
本例可能是有研究价值的病例,仁者见仁智者见智,以上是个人很浅显的看法,还请各位专家继续指导!
参考文献:
1. A subset of CD5- diffuse large B-cell lymphomas expresses nuclear cyclin D1 with aberrations at the CCND1 locus.Ehinger M, Sander B, Cavallin-Ståhl E.
Am J Clin Pathol. 2008 Apr;129(4):630-8.
2. CD5(-) diffuse large B-cell lymphoma with peculiar cyclin D1+ phenotype. Pathologic and molecular characterization of a single case. Lucioni M, Paulli M.
Hum Pathol. 2011 Aug;42(8):1204-8.
受益匪浅!
chenliu0552 离线
1. 关于套细胞淋巴瘤(MCL)的免疫表型问题,WHO第4版有如下描述:
1) They are usually positive for CD5, FMC-7 and CD43.
2) Aberrant phenotype have been described, sometimes in association with blastoid /pleomorphic variants, including absence of CD5 and expression of CD10 and BCL6.
3) All cases are BCL2 protein positive and almost all express cyclin D1, including the minority of cases that are CD5 negative (page231).
根据以上WHO描述,BCL2+对MCL中的诊断是须考虑的。即使如xclbljys老师所引用专著描述的90%,至少BCL2阴性诊断MCL也需十分谨慎。
2. cyclin D1最常见于MCL, 但也可见于DLBCL,B-CLL毛细胞白血病,浆细胞淋巴瘤等,因此不能成为否定DLBCL的依据。关于这一点已有众多文献报道,也有被WHO引用的文献。
3. 在DLBCL中表达可以是局灶性也可以是弥漫,以弱阳为主但也有强阳的病例。已有著者将CD5-,cyclin D1+的DLBCL做为一个亚型发表论文(ref.1,2),虽尚未能在病理界得到一致认可,但至少说明cyclin D1+的DLBCL需值得注意。
4. 胃可以发生MCL,但DLBCL应该更多见. HE形态学:本例肿瘤细胞弥漫分布,核大,与DLBCL的定义并不矛盾;而套母一般对核分裂像有更高的要求;另外本例除肿瘤细胞,背景细胞较复杂,不太符合MCL的特点。如果本例镜下仔细查找可能还是可以找到淋巴上皮内病变的。
本例可能是有研究价值的病例,仁者见仁智者见智,以上是个人很浅显的看法,还请各位专家继续指导!
参考文献:
1. A subset of CD5- diffuse large B-cell lymphomas expresses nuclear cyclin D1 with aberrations at the CCND1 locus.Ehinger M, Sander B, Cavallin-Ståhl E.
Am J Clin Pathol. 2008 Apr;129(4):630-8.
2. CD5(-) diffuse large B-cell lymphoma with peculiar cyclin D1+ phenotype. Pathologic and molecular characterization of a single case. Lucioni M, Paulli M.
Hum Pathol. 2011 Aug;42(8):1204-8.
非常感谢xclbljys 老师以上引经据典的发言,但有两点还需进一步探讨:
1. Bcl-2(-)能出现在套细胞淋巴瘤,母细胞亚型中吗?有依据吗?
2. 弥漫大B淋巴瘤的Cyclin D1表达虽在第4版淋巴瘤WHO中未见描述,但也有一些文献报道阐述,似乎并不能以Cyclin D1完全否定弥漫大B。
本例病例可能比较特殊,根据现在的工具书似乎也不易找到答案,这可能也是淋巴瘤的难点之一。
非常感谢chenliu0552 版主的指导!在淋巴瘤方面,我是个实实在在的门外汉。在学习的过程中,谈一点个人的看法,与版主商榷。
1. Bcl-2(-)能出现在套细胞淋巴瘤,母细胞亚型中吗?有依据吗?
Bcl-2在诊断套细胞淋巴瘤并不是起决定作用,其表达在90%左右,可以有少数不表达病例。
2. 弥漫大B淋巴瘤的Cyclin D1表达虽在第4版淋巴瘤WHO中未见描述,但也有一些文献报道阐述,似乎并不能以Cyclin D1完全否定弥漫大B。
本例是发生在胃的淋巴瘤,如果考虑弥漫大B淋巴瘤,则应该是粘膜相关淋巴瘤向弥漫大B淋巴瘤转化,从HE图片,我们看不到粘膜相关淋巴瘤的“淋巴上皮现象”,CD79a(-)似乎也不支持弥漫大B淋巴瘤。而本例CD10、CD23阴性,则支持套细胞淋巴瘤。关于文献报道阐述弥漫大B淋巴瘤Cyclin D1表达,是弥漫阳性?局灶阳性?或弱阳性?有待更多证据肯定。
本例CD5(-),似乎与套细胞淋巴瘤不符合,有2点需要思考,一是母细胞化问题,导致抗原不表达;二是试剂是否需要对照检测?或染色操作过程问题?
结合本例,我复习了周小鸽老师的有关套细胞淋巴瘤讲座,转帖与大家功享。
那么我们从免疫表型上来看它的特点。因为它是B细胞了,所以它有B细胞的特点,CD20、CD79a、pax5是阳性的,它具有特征性的免疫表型有2个,一个是cyclinD1,这个是最主要的;再一个是CD5,经常是这两个阳性。如果CD20、CD5、cyclinD1阳性,诊断套细胞淋巴瘤就差不多,没什么太多问题了。但是cyclinD1阳性了就诊断套细胞淋巴瘤,这还不一定。现在发现cyclinD1阳性不只是套细胞淋巴瘤,在有些浆细胞淋巴瘤、毛细胞白血病和在少数边缘带淋巴瘤也可以表达,脾脏边缘带淋巴瘤可以表达。最近我们遇到一例脾脏边缘带淋巴瘤表达cyclinD1,我们一查文献,结果15%的边缘带淋巴瘤可以表达cyclinD1,所以说cyclinD1不是唯一的,你要结合到它的形态,还要结合CD5,还要结合到它的一些临床情况,才做出最后的诊断,所以不是只靠一个免疫表型就能做出诊断的。如果这个时候做的CD10、CD23 ,这些是阴性,就可以除外滤泡性淋巴瘤和小淋巴细胞性淋巴瘤,就支持套细胞了。
有些套细胞淋巴瘤可以形成像淋巴母细胞样的细胞,这种细胞比较小,排列紧密,将这些小梁、血管显示出来了。核分裂也很多,看起来就像一个淋巴母细胞淋巴瘤似的,但是做出来TdT是阴性的,cyclinD1、CD5是阳性的,证明它是一个套细胞淋巴瘤。当套细胞淋巴瘤变得恶性度更高时,可以出现母细胞化,可以看到大细胞增多,核仁可以看得见,真正这种母细胞多、成片的时候,经常当作弥漫大B细胞淋巴瘤误诊。根本想不到它是个套细胞 淋巴瘤,一看,这个细胞很大,也有核仁、核分裂也很多,那就是弥漫大B细胞淋巴瘤了,一做CD20阳性,Ki-67也很高,那就已为弥漫大B细胞淋巴瘤,往往漏掉了套细胞淋巴瘤母化。我们自己做个一种工作,就是把以前的弥漫大B细胞淋巴瘤拿来做cyclinD1,结果发现有两例是套细胞淋巴瘤母化了出现的这种现象,所以它本质还是套细胞淋巴瘤,但是恶性度更高了。
chenliu0552 离线
chenliu0552 离线
1.本例主要考虑为:
1)弥漫大B?
2)套母细胞淋巴瘤?
3)套细胞淋巴瘤?
2.并可引发以下思考(前提是组化结果有对照并真实可靠):
1)HE形态对以上淋巴瘤诊断的意义?
2)cyclin D1对以上鉴别的意义?
3)Bcl-2在以上淋巴瘤表达中有何意义?
4)非DLBCL中MUM-1的诊断意义?CD10-, Bcl-6-, MUM-1-三种抗体阴性可诊断DLBCL吗?
5)还有什么其它工作对诊断有意义?
感谢楼主分享病例!
This case is very intersting, please show the results of cylin D1and Bcl-2.
感谢 chenliu0552 老师的指导!
剩余免疫组化图片已经上传至原帖子 http://www.ipathology.cn/channel/detail/name/bbs/article/405192.html
还请给位老师继续给予指导!
chenliu0552 离线
panzenggang 离线
对于Cyclin D1+ 的DLBCL,要除外blastoid mantle cell lymphoma.。我刚刚见过一例,病人5年前有典型mantle cell lymphoma, 最近转化为blastoid mantle cell lymphoma, 形态学上特别像DLBCL,而且组化是CD5-,CD10+, BCL6-, cyclin D1+.
panzenggang 离线