Presentation
Prominent scapula with crepitus of the shoulder and snapping.
Patient Data
Age: 30
Gender: Female
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/69231/annotated_viewer_json?iframe=true\u0026lang=us"}
A bony exostosis is present along the anterior surface of the medial aspect of the scapular body, extending into the scapulothoracic articulation.
From the case:
Osteochondroma - scapular
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/69232/annotated_viewer_json?iframe=true\u0026lang=us"}
The osteochondroma is indicated by the white arrow.
Case Discussion
An osteochondroma arising from the anterior surface of the scapula is a common cause for snapping scapula and/or scapulothoracic bursitis. Abnormal/variant curvature of the scapula or a prominent Lushka tubercle are also common causes.