rice bodies rheumatoide Arthritis

Shoulder
rheumatoid arthritis. Coronal T2-weighted fat saturated image: Multiple intraarticular loose bodies (“rice bodies”) hypointense on T2.
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Rice bodies
associated with rheumatoid arthritis. Plain radiography of the shoulder shows degenerative changes at the acromioclavicular joint with osteophyte formation (arrow). Note the presence of partially sclerotic delineated radiolucent lesions superolateral aspect of the humeral head (arrowheads).
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Rice bodies
associated with rheumatoid arthritis. The anteroposterior view shows irregular delineation of the joint capsule (white arrowheads).
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Rice bodies
associated with rheumatoid arthritis. The scapular Y-view shows multiple intra-articular filling defects (black arrowheads). Note also contrast leakage at the articular side of the infraspinatus in keeping with a partial tendon tear (long arrow).
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Rice bodies
associated with rheumatoid arthritis. Oblique sagittal T1-WI slice shows multiple intra-articular hypointense foci in keeping with rice bodies (arrowheads).
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Shoulder
rheumatoid arthritis. Hypointensity of the intra-articular loose bodies. No magnetic susceptibility artefact is present.
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Rice bodies
associated with rheumatoid arthritis. Oblique sagittal T1-WI more laterally shows huge erosions at the superolateral aspect of the humeral head (arrows).
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Rice bodies
associated with rheumatoid arthritis. Oblique sagittal T1-WI with fat suppression shows multiple intra-articular hypointense foci (arrowheads).
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Rice bodies
associated with rheumatoid arthritis. Coronal T2-WI with fat suppression shows intra-articular hypointense foci in keeping with rice bodies (arrowheads).
www.eurorad.org • CC by-nc-sa-4.0
Shoulder
rheumatoid arthritis. Coronal T1-weighted image: Multiple intraarticular loose bodies (“rice bodies”) hypointense on T1.
www.eurorad.org • CC by-nc-sa-4.0
Shoulder
rheumatoid arthritis. Coronal T1 weighted fat saturated post gadolinium image: Synovial thickening with gadolinium enhancement
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Shoulder
rheumatoid arthritis. Enhacement of the thickened synovium with intraarticular loose bodies and erosion of the distal clavicle with inflammatory changes associated
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Shoulder
rheumatoid arthritis. Decreased thickness of the glenohumeral cartilage (arrowhead) and humeral head erosion (arrow)
www.eurorad.org • CC by-nc-sa-4.0
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rice bodies rheumatoide Arthritis

Rice bodies (musculoskeletal) Radiopaedia • CC-by-nc-sa 3.0 • de

Rice bodies are multiple small loose intra-articular bodies that macroscopically resemble polished grains of white rice. They are located in the synovial fluid, bursae or tendon sheaths .

Clinical presentation

Rice bodies can range from asymptomatic to causing joint pain, effusion and occasionally mechanical symptoms such as locking.

Pathology

The pathogenesis of these loose bodies has been debated and is probably multifactorial. Proposed theories suggest that it may be due to shedding of infarcted synovium, a nidus of cellular debris or they may develop independently subsequently becoming encased by fibrin with different levels of organization.

They are most commonly seen in rheumatoid arthritis  but may also be seen in :

Radiographic features

MRI
  • T1: iso-hypointense
  • T2: hypointense
  • T1 + Gad: non-enhancing

If tightly packed, they may be hard to differentiate especially if isodense to joint effusion.

Differential diagnosis

See also

Siehe auch:
und weiter:
Assoziationen und Differentialdiagnosen zu rice bodies rheumatoide Arthritis:
synoviale
Osteochondromatose
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Rheumatoide
Arthritis
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freier
Gelenkkörper
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