Reliability and Validation of the WB-MRI Radiological Score in CRMO

Inclusion Criteria5

• Patients with a diagnosis of CRMO according to the international Bristol clinical and radiologic criteria, followed at the Pediatric Rheumatology Clinic of the Pediatric Unit, IRCCS AOU Bologna, Sant'Orsola Hospital;
• Age under 18 years at the time of CRMO diagnosis;
• At least one WB-MRI performed as part of routine clinical follow-up between January 2015 and the start date of the study;
• Availability of complete clinical documentation (including reports, radiologic images, and clinical information) sufficient to apply both the WB-MRI score and the PedCNO score;
• Obtain informed consent.