Fig. 2From: The importance of ultrasound in identifying and differentiating patients with early inflammatory arthritis: a narrative reviewUltrasound imaging of synovitis and tenosynovitis. a Flexor tenosynovitis in transverse (left) and longitudinal (right) views. b Metacarpophalangeal joint paratenonitis, dorsal aspect of second metacarpophalangeal joint. MC, metacarpal. c Dorsal proximal interphalangeal B-mode (left) and power Doppler (right) images indicating synovitis in the recess (asterisk). PP, proximal phalanx; MP, middle phalanx; ET, extensor digitorum tendon. d Positive power Doppler signal of finger pulpBack to article page