Clicking shoulder due to snapping Subacromial subdeltoid (SASD) bursitis: a case report of an unusual presentation in clinical practice with imaging features.

A spectrum of pathologies can cause clicking, popping or snapping of the shoulder joint. These can lead to a patient seeking attention in clinical practice due to pain, discomfort and impact on activities of daily living. Traditionally these can originate from pathologies which involve biceps tendon, tears of the rotator cuff or the glenoid labrum, articular cartilage or due to loose bodies and scapulothoracic joint dysfunction [Guillin et al. in Br J Radiol 85:1343-1353, 2012; Vidoni et al. in Indian J Musculoskelet Radiol 4:61-69, 2022]. Subacromial subdeltoid (SASD) bursitis is a well-described entity and one of the commonest causes of shoulder pain. We present SASD bursitis as an unusual cause of clicking/snapping in the shoulder without associated pain in a healthy young male. The clinical presentation, diagnostic strategy with complementary imaging and the role of interventional radiology in its effective management is highlighted to support clinicians faced with a diagnostic dilemma.