Skip to main content
CD22ImmunophenotypeDraft, not yet medically reviewed

CD22 positive

A B-cell marker used as a target in some acute lymphoblastic leukemia.

Parent marker: CD22

Not a diagnosis and not final medical advice. Must be reviewed by a doctor.

Clinical meaning

CD22 is the basis for discussions of conjugated antibody therapy and some cellular therapy research.

How this finding appears in a report

Assessed via flow cells or immunohistochemistry.

When therapy stops working

Changes in markers after previous therapy may influence subsequent choices.

What needs verification

  • Complete variant name as written in the laboratory report.
  • Examination methods and types of samples used.
  • Examination dates were compared with ongoing therapy.

Marker context: CD22

CD22 positivity is used in consideration of conjugated antibody therapy and some cellular therapy studies in acute lymphoblastic leukemia and B cell lymphoma.

A negative result does not always mean absent

Test sensitivity differs by sample type and method. Results need to be read together with the pathology report and clinical condition.

Summary

Gen
CD22
Variant
CD22 positive
Alteration type
Immunophenotype
Discussed in
Leukemia, Lymphoma
Updated
2026-09-10

Other names in reports

CD22+

Drugs discussed

Next steps

These suggestions come from links between entries in TanyaKanker's database, not from a medical judgement. Each suggestion includes why it appears.

Next to learn

To check

What you can do

  • Upload medical reports

    Build a case summary in twelve steps

    Reason: Often the most useful next step after reading this page

  • Request a second opinion

    Review of the treatment plan

    Reason: Relevant when a treatment plan is being considered

  • Consult a navigator

    A request is recorded with this page context

    Reason: For asking the next step directly

Recently updated

Want to follow changes on this topic? Save the page or follow the topic so it is easy to find again. View saved items.

Prepare for your next consultation

Use the free six-question tool to prepare questions for your doctor.