Background: Synovial chondromatosis, or osteochondromatosis, is a rare benign disorder that occurs in joints, tendon sheaths, or bursae, characterized by cartilage proliferations of varying sizes and shapes, often with ossifications. In this study the prevalence, sensitivity, gender predominance, differential diagnoses, and primary localization of synovial chondromatosis are analyzed within the Histopathological Arthritis Registry of the German Society for Orthopedic Rheumatology.
Methods: All cases of patients diagnosed with "synovial chondromatosis" from the Histopathological Arthritis Registry of the German Society for Orthopedic Rheumatology were retrospectively examined, covering the period from 1 January 2018, to 31 December 2022.