nephrogenic adenofibroma https://www.malacards.org/card/nephrogenic_adenofibroma UMLS:C1266141 metanephric adenofibroma A benign, solitary, and partially cystic neoplasm arising from the kidney. It occurs in children and adults. Presenting symptoms include hematuria and polycythemia. It is characterized by the presence of epithelial nodules embedded in a stroma containing spindle cells. MEDGEN:220424 DOID:2698 MONDO:0002396 NCIT:C39812 ICDO:8965/0 kidney benign neoplasm fibroepithelial neoplasm