Once a patient has been identified as having acute lymphoblastic leukemia (ALL), a panel of immunocytochemical stains can be used to characterize the leukemic process.
Panel of stains:
(1) common ALL antigen (CD10)
(2) B antigen (CD20)
(3) T antigen (CD7)
(4) sheep erythrocyte receptor (CD2)
Positive
Negative
Diagnosis
none
CD10, CD20, CD7, CD2
undifferentiated ALL
CD10
CD20, CD7, CD2
common ALL
CD10, CD20
CD7, CD2
pre-B ALL
CD20
CD10, CD7, CD2
B ALL
CD10 +/-, CD7
CD10 -/+, CD20, CD2
pre-T ALL
CD7, CD2
CD10, CD20
T ALL
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