Phosphaturic Mesenchymal Tumors: Histologic Mimics and Updates. (PubMed, Surg Pathol Clin)
Recent findings suggest that its tumorigenesis and FGF23 overproduction depend on the FGFR1 pathways, which may be activated via FN1::FGFR1 or FN1::FGF1 fusion, as well as by α-Klotho overexpression in the majority of fusion-negative PMTs. This review discusses the clinical, histologic, immunohistochemical, and molecular genetic features, along with potential therapies and differentiation from potential mimics.