Table 1 Risk classification of Wilms tumors according to the histological subtype of the neoplasm
From: Navigating the complexity of Wilms tumors in pediatrics: diagnostic challenges for better treatment
Low risk | Cystic partially differentiated nephroblastoma | High risk | Blastema |
Completely necrotic | Diffuse anaplasia | ||
Mesoblastic nephroma | |||
Intermediate risk | Non anaplasic and variants | Others | Clear cell sarcoma of the kidney |
Epithelial WT | Malignant rhabdoid tumor | ||
Stromal WT | Renal cell carcinoma | ||
Mixed WT | Others | ||
Regressive WT | Indeterminate | ||
Focal anaplasia | Nephroblastomatosis |