Reichel Syndrome in Children: A Case Report.

Reichel syndrome or primary synovial chondromatosis (PSC) is an uncommon benign metaplastic condition that usually affects large joints. Though shoulder involvement was scarce, there are only a few cases in the pediatric population. A 14- year-old boy was admitted to the Pediatric Orthopedics department with right shoulder pain for 14 months. Imaging revealed multiple loose bodies distributed throughout the glenohumeral joint. Upon the arthroscopic approach, we remove all cartilaginous nodules within the glenohumeral space and abarticular tendon. Histopathologic examination confirmed the diagnosis of primary synovial chondromatosis. At follow-up, the patient remains free of symptoms, and shoulder radiographs showed no recurrence of calcification. The present case illustrates the clinical patterns, imaging features, histological findings, and therapeutic management of shoulder primary synovial chondromatosis in a pediatric patient.