Joint Involvement in Primary Sjögren’s Syndrome: An Ultrasound “Target Area Approach to Arthritis”

<table>Bone erosion. Cortical defect (0.9 mm) on the semilunar bone (<i>os lunatum</i>) in longitudinal (a) and transverse (b) scans in a patient with primary Sjögren’s syndrome.</table>

BioMed Research International

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Figure 3

Figure 3: Joint Involvement in Primary Sjögren’s Syndrome: An Ultrasound “Target Area Approach to Arthritis” 