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Insights into Imaging
Fig. 4 | Insights into Imaging

Fig. 4

From: Sonographic description and classification of tendinous involvement in relation to tophi in chronic tophaceous gout

Fig. 4

a Computer-generated image of a tophus causing extrinsic compression on the tendon. b Longitudinal ultrasound image (P proximal, D distal) of the lateral aspect of the ankle showing tophus causing extrinsic compression (arrowheads) on the peroneus brevis tendon (T). Note the hyperechoic tophus under the surface of the tendon, causing a slight compressive effect (arrowheads). Arrows mark the bone surface of the talus

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