Fig. 4.

US image of a 33-year-old female patient with a history of lateral ankle pain for the last 16 days shows thickened and hypoechoic tendon sheath around the peroneus longus and brevis tendons (red and yellow arrows in A). Another female patient aged 48 years presented with a history of medial ankle pain. US shows tendon sheath thickening of the tibialis posterior tendon (green arrow in B and yellow arrow in C) with increased vascularity on color Doppler imaging (B); suggestive of tenosynovitis. Asterisk presents free fluid (B, D). Point tenderness was present in both cases