Phosphaturic mesenchymal tumor

Phosphaturic mesenchymal tumor
Classification and external resources

Phosphaturic mesenchymal tumor is an extremely rare benign neoplasm of soft tissue and bone that inappropriately produces fibroblast growth factor 23. This tumor may cause tumor-induced osteomalacia, a paraneoplastic syndrome, by the secretion of FGF23, which has phosphaturic activity (by inhibition of renal tubular reabsorption of phosphate and renal conversion of 25-hydroxyvitamin D to 1,25-dihydroxyvitamin D). The paraneoplastic effects can be debilitating and are only reversed on discovery and surgical resection of the tumour.^[1]

References

1. Zadik Y, Nitzan DW (October 2011). "Tumor induced osteomalacia: A forgotten paraneoplastic syndrome?". Oral Oncol 48 (2): e9–10. doi:10.1016/j.oraloncology.2011.09.011. PMID 21985764.

^[1]

1. Wasserman, JK; Purgina, B; Lai, CK; Gravel, D; Mahaffey, A; Bell, D; Chiosea, SI (12 January 2016). "Phosphaturic Mesenchymal Tumor Involving the Head and Neck: A Report of Five Cases with FGFR1 Fluorescence In Situ Hybridization Analysis.". Head and neck pathology. PMID 26759148.