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Figure 1 | Arthritis Research & Therapy

Figure 1

From: Ultrasonography of the metacarpophalangeal and proximal interphalangeal joints in rheumatoid arthritis: a comparison with magnetic resonance imaging, conventional radiography and clinical examination

Figure 1

Signs of destruction on ultrasonography in the fourth proximal interphalangeal joint: early RA. MRI and conventional radiography revealed no signs of destruction in the joint. A bone erosion (arrow) is visualized with ultrasonography in (a) the longitudinal and (b) the transverse planes. MRI, magnetic resonance imaging; RA, rheumatoid arthritis.

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