Table 1 Clinical characteristic of S-ALCL patients, according to ALK expression
Clinical feature | ALK+S-ALCL | ALK-S-ALCL | P |
|---|---|---|---|
patients no. | 51 | 41 | Â |
Median age (all patients) (range), y | 22(3–63) | 30(2–74) | <0.05 |
Median age (without pediatric patients) (range), y | 38(19–63) | 34(19–74) |  |
Male–female ratio | 1.7:1 | 1.7:1 | 1.000 |
Stage, no.(%) | Â | Â | 1.000 |
I | 16(31) | 11(27) | Â |
II | 10(20) | 9(22) | Â |
III | 17(33) | 13(32) | Â |
IV | 8(16) | 8(19) | Â |
location of tumor, no. (%) | Â | Â | 0.675 |
nodal | 24(47) | 17(41) | Â |
extranodal | 27(53) | 24(59) | Â |
B symptom, no. (%) | Â | Â | 0.095 |
with | 28(55) | 15(37) | Â |
without | 23(45) | 26(63) | Â |