Phosphaturic Mesenchymal Tumor of the Pelvis: A Multidisciplinary Approach

Keywords: Phosphaturic mesenchymal tumor, oncogenic osteomalacia, oncological orthopedics, pelvic surgery

Abstract

Phosphaturic mesenchymal tumor (PMT) is an infrequent clinicopathological entity. It presents insidious bone pain and polymyalgia, accompanied by alterations in calcium and phosphorus metabolism that are difficult to resolve clinically. A multidisciplinary approach is a key to success in this pathology. We present the case of a 52-year-old female patient with a 10-year history of PMT in the right hemipelvis with ipsilateral hip extension. From the clinical point of view, she presented oncogenic osteomalacia (hypophosphatemia and hyperphosphaturia) that did not correct despite being administered the latest generation medication, burosumab, an FGF-23 inhibitor that increases renal tubular phosphate reabsorption. Resection with oncological margins was decided by a multidisciplinary committee resolving her clinical condition. Due to the rarity of this pathology, we decided to report the case

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Author Biographies

Leonardo Matías Cullari, Orthopedics and Traumatology Service, Hospital Británico de Buenos Aires, Autonomous City of Buenos Aires, Argentina
Orthopedics and Traumatology Service, Hospital Británico de Buenos Aires, Autonomous City of Buenos Aires, Argentina
Sebastián Senes, Orthopedics and Traumatology Service, Hospital Británico de Buenos Aires, Autonomous City of Buenos Aires, Argentina
Orthopedics and Traumatology Service, Hospital Británico de Buenos Aires, Autonomous City of Buenos Aires, Argentina
Juan Pablo Taleb, Orthopedics and Traumatology Service, Hospital Británico de Buenos Aires, Autonomous City of Buenos Aires, Argentina
Orthopedics and Traumatology Service, Hospital Británico de Buenos Aires, Autonomous City of Buenos Aires, Argentina
Ignacio Fita, Orthopedics and Traumatology Service, Hospital Británico de Buenos Aires, Autonomous City of Buenos Aires, Argentina
Orthopedics and Traumatology Service, Hospital Británico de Buenos Aires, Autonomous City of Buenos Aires, Argentina
Pablo Daniel Sarmiento, Orthopedics and Traumatology Service, Hospital Británico de Buenos Aires, Autonomous City of Buenos Aires, Argentina
Orthopedics and Traumatology Service, Hospital Británico de Buenos Aires, Autonomous City of Buenos Aires, Argentina

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Published
2022-06-25
How to Cite
Cullari, L. M., Senes, S., Taleb, J. P., Fita, I., & Sarmiento, P. D. (2022). Phosphaturic Mesenchymal Tumor of the Pelvis: A Multidisciplinary Approach. Revista De La Asociación Argentina De Ortopedia Y Traumatología, 87(3), 360-370. https://doi.org/10.15417/issn.1852-7434.2022.87.3.1371
Section
Case Presentations