Fig. 5From: Sonographic description and classification of tendinous involvement in relation to tophi in chronic tophaceous gouta Computer-generated image of tophus inside the tendon. b Longitudinal ultrasound image (P proximal, D distal) of the distal forearm (radius, arrows) showing a cross-section of the tophus (dotted line between Xs and arrowheads) inside the extensor pollicis longus tendon (T) resulting in loss of its fibrillary patternBack to article page