IHC Expression Pattern
|
Positive
|
|
|
Positive
|
|
|
CD45RA
|
Positive
|
|
Positive. Rare cases may be negative, but should express CD4, CD123, and TCL1.
|
|
|
Expressed in ~50% of cases (small cytoplasmic dots)
|
|
|
Often Positive
|
|
|
Negative
|
|
|
MPO
|
Negative
|
|
Negative in tissue sections (may be + by flow)
|
|
|
Negative
|
|
|
Negative
|
|
|
EBV-EBER
|
Negative
|
|
TCL-1
|
Positive
|
References
Hematopathology. [edited by] Jaffe, ES. 1st. ed. Elsevier, Inc. © 2011.