Site & Histology Exercise
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Site Code: C64.9
Radical nephroadrenalectomy path report confirms imaging studies indicating right kidney, NOS (renal parenchyma) as primary site.
Histology Code: 8960/39
Path report states Wilms tumor (also known as nephroblastoma). No grade is given. Code histologic grade = 9. "Stage I" in the path report refers to a staging system used by the National Wilms Tumor Study Group. Wilms tumor is also subdivided into "favorable histology" and "anaplastic histology" prognostic groups according to certain histopathologic features of the tumor which do not affect the stage. (Reference: National Cancer Institute website "Wilms Tumor and Other Childhood Kidney Tumors")