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
QHPSS
Royal Brisbane Hospital
Australia
madbaza@powerup.com.au