Isn't cd19 also tested? I don't see it there.

Yes, CD19 testing is indeed an important part of lymphoma diagnosis and monitoring! Let me explain its significance.

According to the National Comprehensive Cancer Network (NCCN) Guidelines for B-Cell Lymphomas, CD19 is a key marker that should be tested as part of the initial immunophenotyping panel. It's particularly important because:

1. The Leukemia & Lymphoma Society (LLS) explains that CD19 is:

• A protein found on the surface of most B-cells
• Present in most B-cell lymphomas
• A crucial marker for diagnosis
• An important therapeutic target for certain treatments (like CAR T-cell therapy)

1. According to NCCN Guidelines, CD19 testing is essential because:

• It helps confirm B-cell origin of lymphomas
• It's used to monitor disease during and after treatment
• It's particularly important when considering CAR T-cell therapy, as most FDA-approved CAR T treatments target CD19

If you don't see CD19 in your test results, I'd recommend asking your healthcare team about it, as it's a standard part of lymphoma diagnostic testing according to these guidelines.

Would you like me to explain more about how CD19 testing is used in lymphoma diagnosis or treatment planning?