Describe the pathophysiology and clinical features of primary and secondary synovial chondromatosis. Describe and demonstrate multimodality-imaging features of synovial chondromatosis. Describe the complications of primary synovial chondromatosis and their imaging correlates. Discuss other intra-articular/peri-articular pathologies within the differential diagnosis with relevant distinguishing features on imaging
Synovial chondromatosis refers to the presence of intra-articularcartilaginous loose bodies,
whichmay ormay notbe calcified/ossified.
It is known by several other names,
namely synovial osteochondromatosis,
articular ecchondrosis and synovial chondrosis.
A distinction should be made between primary and secondary synovial chondromatosis.
It should also be differentiated from other intra-articular conditions,
which may have a similar appearance on imaging. Primary...
Imaging findings OR Procedure Details
Primary synovial chondromatosis (PSC) imaging findings: Plain radiograph This is oftenabnormal in 70% of cases and may demonstrate the following features: Innumerable intra-articular calcifications of uniform size,
which are evenly distributed throughout the joint Fig. 1 (or less commonly tendon or bursa Fig. 5 Fig. 6 ).
Chondroid ring-and-arc pattern of mineralisation is common,
which can progress and undergo ossification. In rare cases the chondral bodies can coalesce to form la arger,...
Synovial chondromatosis can have a varied appearance depending on whether it is primary or secondary,
intra or extra-articular or on the phase of the disease.
CT and MRI have characteristic appearances and in equivocal cases,
biopsy can aid diagnosis particularly if other intra-articular causes are suspected.
Imaging of synovial chondromatosis with radiologic-pathologic correlation.
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Synovial chondrosarcoma arising in synovial chondromatosis.
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Synovial chondromatosis: a review of the...
Acknowledgements: Dr Bhavin Upadhyay,
Royal National Orthopaedic Hospital