Home > E. Pathology by systems > Locomotory system > Joints > Articular synovium > synovial chondromatosis
synovial chondromatosis
Tuesday 15 October 2013
synovial osteochondromatosis, primary synovial osteochondromatosis, synovial chondrometaplasia; Reichel’s syndrome or Reichel-Jones-Henderson syndrome, named after Friedrich Paul Reichel, Hugh Toland Jones and Melvin Starkey Henderson.
| WP | PO | PO |
Definition: Synovial chondromatosis is a disease affecting the synovium, a thin flexible membrane around a joint.
Synopsis
chondroid metaplasia in chronic synovitis
Images
Synovial Chondromatosis: hyaline nodules; myxoid degeneration; +/- hypercellularity; binucleation
- https://twitter.com/DanglisFotiosMD/status/800957410210906112
- https://twitter.com/RiyamZreikMD/status/828725702379855872
- https://twitter.com/histiocytosisX/status/737369706563309568
- https://twitter.com/ArchivesPath/status/758699023855394816
- https://twitter.com/clinic_knee/status/820697892189048832
- https://twitter.com/DrFNA/status/652664524965814272
- https://twitter.com/HemelPhysio/status/717391487764471808
- https://twitter.com/DrFNA/status/702901030363598848
intra-articular synovial chondromatosis
- https://twitter.com/ORTHOJournal/status/686218594611544065
- https://twitter.com/NejibY/status/629692620487438336
- https://twitter.com/Heddayat/status/1425495844392947715
radiology
Synopsis
Numerous round osteocartilaginous nodules cover a thickened synovial surface or float freely within joint space.
Cartilage cells with variable atypia or binucleated forms within synovium ;
clusters of chondrocytes are often arranged in lobules;
no underlying arthritis
hyaline nodules
myxoid degeneration
+/- hypercellularity
binucleation
Differential diagnosis
cartilaginous loose bodies : more common, but associated with arthritis
chondrosarcoma: not within a joint, no characteristic clustering pattern, marked myxoid change, spindling of nuclei
injury-related soft-tissue calcification
arborescent lipoma with osseous metaplasia
neuropathic arthropathy or osteochondritis dissecans : no lobulation, clustering or atypia
pigmented villonodular synovitis
secondary synovial chondrometaplasia due to degenerative joint disease
-synovial vascular malformation
Secondary disease
Associated with degenerative joint disease - growth of fragments of articular cartilage
Initially intrasynovial disease without loose bodies; then intrasynovial proliferation and free loose bodies, then multiple free osteochondral bodies without intrasynovial disease. No atypia.
See also
chondromatosis
synovial anomalies