Table 4: Frequencies of Aberrant Phenotypes

Aberrant Phenotypes Number of Cases %

Cross Lineage Infidelity
T lympoid cross lineage expression
CD5 11 14,5
CD7 7 9,5
CD2 2 2,7
CD4 2 2,7
CD8 1 1,3
Myeloid cross lineage expression
CD33 14 18,7
CD13 6 8
CD117 1 1,3
CD65 2 2,7
NK absurd marker
CD56 4 5,3
Monocytic absurd marker
CD14 2 2,7

Antigen over or Underexpression of Markers
Overexpression
CD10 55 73,3
CD34 7 9,5
CD19 2 2,7
Underexpression
CD10 7 9,5

Asynchronous Antigen Expression
CD10 and CD20 4 5,3
CD22 and CD34 6 8