The development of free bodies in joint cavities due to synovial chondromatosis.
D000328:Adult; D000368:Aged; D002812:Chondroma / Q000648:ultrastructure*; D005260:Female; D006801:Humans; D007592:Joint Diseases / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D013583:Synovial Membrane / Q000648:ultrastructure*