Case presentation A 45-year-old right-handed man presented to the emergency department with complaints of sudden left shoulder pain two days before his visit. The pain has worsened since then. Past medical history The patient did not report a clinical history of any metabolic disease or trauma around the shoulder. Physical examination of the left shoulder Limited forward flexion to 110°, an extension to 30°, abduction to 110°, external rotation to 30°, and internal rotation to L2.
The numeral rating scale for pain: 3/10 at rest, 7/10 at motion, and 5/10 at night. Tenderness was observed around the anterior aspect of the acromion. Radiology examination: Plain radiography was considered along with an anteroposterior (AP) radiograph (Cover Image). A small hyperechoic lesion on the anterior acromial insertion of the left deltoid muscle and hypervascularity was observed in ultrasonography…
