Table 1.

EGIL Classification of T-ALL (8–10).

Subtype	Pattern of immunophenotypic markers expression
	cCD3	CD7	CD2	CD5	CD1a	Surface CD3
Pro-T-ALL	+	+	-	-	-	-
Pre-T-ALL	+	+	+	+	-	-
Cortical T-ALL	+	+	+	+	+	+/-
Mature T-ALL	+	+	+	+	-	+