PMC7576339_01
(a) Anteroposterior radiograph of the left shoulder showing a normal appearance. (b) Plain radiograph with the arm in an elevated position showing calcification around the anterior acromion. The arrow indicates the calcium deposit.
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Plain radiography with the left arm in an elevated position confirmed a calcification at the anterior aspect of the acromion, whereas an anteroposterior (AP) radiograph revealed a normal appearance (Figure 1).
Color Doppler sonogram showing fragmented calcification (dotted line) with hypervascularity, the anterior acromion (white arrowheads), and the deltoid (black arrowheads).
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Ultrasonography revealed a small hyperechoic lesion on the anterior acromial insertion of the left deltoid muscle and hypervascularity around the calcium deposit (Figure 2).
Plain radiograph with the arm in an elevated position showing the disappearance of calcification.
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At 3 years after the initial treatment, plain radiographs of the left shoulder demonstrated complete disappearance of the calcification (Figure 3).