Congenital<unk> , while rare, is the most common kidney neoplasm diagnosed in the first three months of life and accounts for 3-5% of all childhood renal neoplasms. This neoplasm is generally non-aggressive and amenable to surgical removal. However, a readily identifiable subset of these kidney tumors has a more malignant potential and is capable of causing life-threatening metastases. Congenital<unk>  was first named as such in 1967 but was recognized decades before this as fetal renal hamartoma or leiomyomatous renal hamartoma.
Mesoblastic nephroma
Cystic nephroma
Renal medullary fibroma
Medullary sponge kidney
Renal anaplastic sarcoma
Papillary renal cell carcinoma
Renal medullary carcinoma
Renal oncocytoma