Tumor induced-osteomalacia caused by a phosphaturic mesenchymal tumor in the sartorius muscle: a case report

Ga-DOTA-TATE PET/CT identified a metabolically active lesion in the sartorius muscle. Surgical resection of the tumor resulted in complete resolution of symptoms, restoration of mobility and normalization of phosphate metabolism. This case emphasizes the importance of considering TIO in patients with unexplained osteomalacia and highlights the diagnostic value of functional imaging.