(a)
(b)
(c)
(d)
Figure 4: Ultrasound appearance of calcific tendinopathy. (a) Arc morphology: echogenic arc of calcification with deep acoustic shadowing. (b) Nodular morphology: single echogenic focus of calcification without acoustic shadowing. (c) and (d) Fragmented morphology: two or more echogenic foci of calcification with (image (c)) or without (image (d)) acoustic shadowing.