metanephric adenofibroma

metanephric adenofibroma

A rare, benign biphasic (epithelial) and stroma (renal) lesion, in which the epithelial component is that of a metanephric adenoma: cellular, closely packed acini, scattered tubules, numerous solid areas, and occasional "glomeruloid bodies". The individual cells are small, with scant pale cytoplasm; calcospherites may be present.
References in periodicals archive ?
A composite renal tumor: Metanephric adenofibroma, wilms tumor, and renal cell carcinoma: A missing link?
Solid mixed epithelial and stromal tumors also need to be distinguished from mesoblastic nephroma and metanephric adenofibroma.
World Health Organization (WHO) histological classification of benign renal neoplasms Renal cell tumors Metanephric tumors Mesenchymal tumors Oncocytoma Metanephric adenoma Angiomyolipoma Papillary adenoma Metanephric adenofibroma Leiomyoma Metanephric stromal tumor Hemangioma Lymphangioma Reninoma Fibroma Schwannoma Renal cell tumors Mixed epithelial mesenchymal tumors Oncocytoma Cystic nephroma Papillary adenoma Mixed epithelial and stromal tumor