Subcutaneous Panniculitis-Like T-Cell Lymphoma

This is a rare lymphoma (<1% of non-Hodgkin lymphomas), which presents as subcutaneous nodules on the skin.
Immunophenotypic Expression Pattern
Marker
Comment
Positive (usually)
TIA-1
Positive
Positive
Perforin
Positive
Negative
βF1
Positive (alpha beta T-cell phenotype)
EBV (EBER)
Negative
Refernces
Hematopathology. [edited by] Jaffe, ES. 1st. ed. Elsevier, Inc. © 2011.  pp. 294-95.