RE: Lymphoma

From:"Nader, Alexander" <>

T-and NK-lymphoblastic lymphomas can co-express CD79a,take a look at:

Pilozzi E, Pulford K, Jones M, Muller-Hermelink HK, Falini B, Ralfkiaer E,
Pileri S, Pezzella F, De Wolf-Peeters C, Arber D, Stein H, Mason D, Gatter
Co-expression of CD79a (JCB117) and CD3 by lymphoblastic lymphoma.
J Pathol. 1998 Oct;186(2):140-3.


Gloeckner-Hofmann K, Ottesen K, Schmidt S, Nizze H, Feller AC, Merz H.
T-cell/natural killer cell lymphoblastic lymphoma with an unusual
coexpression of B-cell antigens.
Ann Hematol. 2000 Nov;79(11):635-9.

Dr. Alexander Nader
Path. Institut Hanuschkrankenhaus
Heinrich-Collin Straße 30
A-1140 Wien, Österreich
+43-1-910 21 DW:2422 <> <> 

> -----Original Message-----
> From: Barry Madigan []
> Sent: Friday, February 02, 2001 11:17 AM
> To: Histonet
> Subject: Lymphoma
> Hello Fellow Histo Netters
> Has anyone come across a lymphoma that is CD20 negative but 
> both CD79a and
> CD45RO positive.
> All tonsil controls are ok and staining was repeated twice on 
> different days
> with the same results.
> Staining performed on other cases on these days was ok.
> Regards
> Barry Madigan
> Royal Brisbane Hospital
> Australia

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