Sara, I'm sorry that you've had to find us here.
I've no experience with agressive NHL yet with all NHL's basic information is needed.
What is the specific diagnosis? Cell type, stage, etc. Ask for a copy of the pathology report. In fact have your Mom, if you can, get a complete copy of his medical records on this issue. They probably won't give it to you.
CHOP is pretty standard front line treatment.
What other research have you done since your last post?
djc
5/98 dx center cell indolent NHL
5/98 CHOP-Rituxan
2000 Rituxan
2003 Rituxan
2005_02_28 Rituxan