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Fig. 3 | Arthritis Research & Therapy

Fig. 3

From: The importance of ultrasound in identifying and differentiating patients with early inflammatory arthritis: a narrative review

Fig. 3

Ultrasound findings for differentiation of psoriatic arthritis from rheumatoid arthritis. a Short-axis view of palmar plate inflammation. FT, flexor tendon; MH, metacarpal head; PP, palmar plate. b Dorsal long view of enthesitis of the extensor tendon from a distal interphalangeal joint in a patient with psoriatic arthritis. DIP, distal interphalangeal; S, DIP synovitis; asterisk (*), enthesophyte; double asterisks (**), extensor tendon demonstrating thickening, hypoechogenicity, and loss of fibrillar architecture; triple asterisks (***), extensor tendon with insertional Doppler

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