<unk><unk>  has a triphasic appearance. It is comprised of 3 types of cells which are stromal, epithelial and blastemal. All the 3 types are not required for the diagnosis of<unk><unk> . Primitive tubules and glomeruli are often seen comprised of neoplastic cells. Beckwith and Palmer reported in NWTS the different histopathologic types of<unk><unk>  to categorize them based on prognosis. Lesions comprising of nephrogenic rests can lead to<unk><unk> .<unk><unk>  (hereditary or sporadic) appears to result from changes in one or more of at least ten genes. Based on a study<unk><unk>  is divided into 2 pathologic categories: favorable and anaplastic.<unk><unk>  (hereditary or sporadic) appears to result from changes in one or more of at least ten genes. The changes may be somatic or germline. Aberrations in germline or clonal WT1, WT2, and Wnt activation when combined with stage of development of the nephron, characterize different subsets of<unk><unk>  that can be differentiated by using gene expression profiling. This genetic/ontogenic categorization describes some of the heterogeneity among<unk><unk> s.
Wilms' tumor pathophysiology
Germinoma pathophysiology
Hepatoblastoma risk factors
Wilms' tumor laboratory findings
Gonadoblastoma laboratory findings
Ameloblastoma pathophysiology
Pituitary adenoma pathophysiology
Metanephric adenoma pathophysiology