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Table 1 International Neuroblastoma Pathology Classification

From: Adult onset of ganglioneuroblastoma of the adrenal gland: case report and review of the literature

Category and subtype Pathology classification
Neuroblastoma (Schwannian stroma-poor) FH and UH subgroups, based on the combination of age, grade of neuroblastic differentiation, and MKI
 Undifferentiated
 Poorly differentiated
 Differentiating
Ganglioneuroblastoma, intermixed (Schwannian stroma-rich) FH
Ganglioneuroma(Schwannian stroma-dominant) FH FH
 Maturing  
 Mature  
Ganglioneuroblastoma, nodular (Schwannian stroma-rich/stroma-dominant and stroma-poor) UHa
  1. FH favorable histology, UH unfavorable histology, MKI mitosis-karyorrhexis index
  2. aTumors in this category were classified into an unfavorable histology group according to the International Neuroblastoma Pathology Classification