PMC7354654_01
Initial radiograph of the left shoulder.
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Radiograph of the left shoulder revealed a large ovoid radiopaque area measuring 2 x 1 cm in the subacromial region, impinged between the humerus and acromion (Figure 1).
Coronal magnetic resonance imaging of the left shoulder. (a) T1-weighted; (b) T2-weighted fat suppression.
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T1- and T2-weighted sequences above the supraspinatus tendon, just proximal to its insertion at the greater tuberosity (Figure 2). The imaging findings strongly suggested calcific supraspinatus tendinitis.
Intraoperative findings. (a) A white mass (*) existed on the supraspinatus muscle. (b) When the capsule was incised, white paste flowed out (arrow).
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After dividing the deltoid muscle, a capsulated white mass was noted on the supraspinatus muscle (Figure 3(a)). When the capsule was incised, white paste exuded (Figure 3(b)), which nearly confirmed the diagnosis of calcific tendinitis.
Radiograph at final follow-up.
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Radiographs taken 2 weeks after the surgery showed that the mass had disappeared (Figure 4); the culture test was also negative.