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. Author manuscript; available in PMC: 2013 Jul 5.
Published in final edited form as: Ann Surg. 2011 May;253(5):1004–1010. doi: 10.1097/SLA.0b013e31821266a0

Table 3.

Pathologic Findings of Specimens Obtained Before and After Chemotherapy

Pre-Chemotherapy Pattern Post-Chemotherapy Pattern
Inadequate Specimen 4 (1%) 4 (1%)
Blastemal Predominant 60 (16%) 17 (7%)
Epithelial Predominant 64 (17%) 17 (7%)
Stromal Predominant 6 (2%) 12 (4%)
Mixed Cell Wilms Tumor 133 (35%) 36 (14%)
Teratoid 5 (1%) 7 (3%)
Diffuse Anaplasia 7 (2%) 16 (6%)
Focal Anaplasia 2 (.05%) 3 (0.5%)
Not Coded 37(10%) 137 (52%)
Intralobar Nephrogenic Rests 50 (13%) 3 (0.5%)
Perilobar 6 (2%) 9 (3%)
Rest (Other) 2 (.05%) 5 (2%)