| Data | Numbers (%) |
---|---|---|
Tumor histology (n = 107) | Neuroblastoma | 99 (92.5) |
Ganglioneuroblastoma, intermixed | 8 (7.5) | |
Tumor differentiation (n = 73) | Undifferentiated | 30 (41.2) |
Poorly differentiated | 35 (47.9) | |
Differentiated | 8 (10.9) | |
MYCN amplification (n = 51) | MYCN non-amplified | 39 (76.4) |
MYCN amplified | 12 (23.5) | |
Shimada histology (n = 32) | Unfavorable | 23 (71.9) |
Favorable | 9 (28.1) |