Primary Treatment Refractory Adult Wilms’ Tumor: A Case Report

REPORTdefect in the renal vein and renal and suprarenal IVC, suggestive of tumor thrombus, second and third part of duodenum with loss of fat plane (LOFP), and uncinate process of pancreas with LOFP, along with a 2.2 2 cm mid para-aortic lymph node, and no distant metastases were seen (Fig. 1).A core needle biopsy was done from the right renal fossa mass, which was suggestive of leiomyoma.T he p atient was re ferre d to our ins titution, and histopathological review showed a collection of fusiform to elongated cells, vascular proliferation, loose stroma, necrosis, and minimal pleomorphism with a possibility of a benign lesion.Immunohistochemistry (IHC) showed focal positivity for HMB45, EMA, and PAX8, positivity for actin, desmin, vimentin, H-caldesman, and negative Melan-A and AE1.He underwent right radical nephrectomy with thrombectomy with lymph node dissection.Surgical pathology specimen showed classical triphasic