Stage of maturation arrest based on TCR as described20 among the 3 TLX1-defined groups
| Stage of maturation arrest . | TLX1-high, no. (%) . | TLX1-low, no. (%) . | TLX1-neg, no. (%) . |
|---|---|---|---|
| Available phenotypes | 32 | 53 | 156 |
| IM | 1 (3) | 17 (32) | 39 (25) |
| IMB or pre-AB | 29 (91) | 24 (45) | 51 (33) |
| TCR-AB | 1 (3) | 5 (9) | 31 (20) |
| TCR-GD | 1 (3) | 7 (13) | 35 (22) |
| Stage of maturation arrest . | TLX1-high, no. (%) . | TLX1-low, no. (%) . | TLX1-neg, no. (%) . |
|---|---|---|---|
| Available phenotypes | 32 | 53 | 156 |
| IM | 1 (3) | 17 (32) | 39 (25) |
| IMB or pre-AB | 29 (91) | 24 (45) | 51 (33) |
| TCR-AB | 1 (3) | 5 (9) | 31 (20) |
| TCR-GD | 1 (3) | 7 (13) | 35 (22) |
IM indicates immature; IMB, immature with V-D-J TCRB but cTCRB negative; pre-AB, surface TCR-negative, cTCRB-expressing cases; TCR-AB, αβ T-cell-receptor expressing; and TCR-GD, γδ T-cell-receptor expressing.