Y view of shoulder (transthoracic)  

The Y-view is taken by aligning the x-ray beams parallel to the plane of the scapula so that it can be seen "floating" over the thoracic wall. In a healthy patient, the humeral head should be in alignment with the glenoid cavity of the scapula. If the glenoid cavity is not visualized directly, its position may be inferred from the intersection of the spine of the scapula, coracoid process and scapular body (the "Y" formation). Following a traumatic dislocation, the humeral head will not be aligned with the "Y".

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Identify the following:

1. clavicle

2. acromion

3. head of humerus


4. spine of scapula

5. coracoid process

6. body of scapula