Scapulothoracic bursae refer to a number of bursae that allow for the gliding movement of the scapulothoracic joint.
Two major bursae have been reliably described 1,3:
- infraserratus (scapulothoracic) bursa: between the serratus anterior muscle and the chest wall
- supraserratus (subscapularis) bursa: subscapularis and serratus anterior muscles
Four adventitial bursae have been described that are variably present 1,3:
- two at the superomedial angle of the scapula, either superior and/or inferior to serratus anterior
- inferior angle: between serratus anterior and the chest wall
- scapulotrapezial/trapezoid: between medial spine of the scapula and trapezius muscle
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