Wilms Tumor

**Semantic type:** Neoplastic Process

**Definition:** An embryonal neoplasm characterized by the presence of epithelial, mesenchymal, and blastema components. The vast majority of cases arise from the kidney. A small number of cases with morphologic features resembling Wilms tumor of the kidney have been reported arising from the ovary and the cervix.

**Synonyms:** - Nephroblastoma - Wilms tumor - Wilms tumor (Nephroblastoma) - Wilms tumor (WT) - Wilms' Tumor