Phosphorus-31 Spectroscopy in Phosphate Diabetes

Inclusion Criteria

• •Patient ≥ 10 years old with phosphate diabetes, i.e., genetically confirmed XLH or phosphate diabetes of another origin characterized by hypophosphatemia with a decreased Tm/GFR.
• •Patient has given consent to participate in the study.
• •Signed consent (by both legal representatives for minor patients).
• •Patient regularly followed up within the pediatric nephrology services at the Femme Mère Enfant hospital and the nephrology-functional exploration services at the Edouard Herriot hospital.
• •Patient aged 10 to 17 years, without chronic kidney disease, without hypophosphatemia, without muscular abnormalities, and without growth disorders.
• •Patient has given consent to participate in the study.
• •Signed consent (by both legal representatives for minor patients).
• •Patient regularly followed up within the pediatric nephrology services at the Femme Mère Enfant hospital.
• •Patient without chronic kidney disease, without hypophosphatemia, without muscular abnormalities, and without malnutrition.
• •Patient has given consent to participate in the study.
• •Signed consent.
• •Patient regularly followed up within the renal functional exploration services at the Edouard Herriot hospital.