Table 1 Prognostic evaluation of neuroblastic tumors^a

Neuroblastoma

Schwannian stroma-poor

Stroma-poor

   Favorable

Favorable

Favorable

< 0.5 years

Poorly differentiating or differentiating and low or intermediate MKI tumor

1.5 to 5 years

Differentiating and low MKI tumor

   Unfavorable

Unfavorable

Unfavorable

< 1.5 years

Undifferentiated tumor

High MKI tumor

1.5 to 5 years

Undifferentiated or poorly differentiated tumor

Intermediate or high MKI tumor

≥ 5 years

All tumors

Ganglioneuroblastoma, intermixed

Schwannian stroma-rich

Stroma-rich intermixed (favorable)

Favorable

Ganglioneuroma

Schwannian stroma-dominant

Favorable

   Maturing

Well-differentiated (favorable)

   Mature

Ganglioneuroma

Ganglioneuroblastoma, nodular

Composite Schwannian stroma-rich/stroma-dominant and stroma-poor

Stroma-rich nodular

(unfavorable)

Unfavorable