Humerus: Radiographic Anatomy - Video Lesson

Hey, everybody. Welcome to today's lesson on radiographic anatomy, demonstrated on routine projections of the humerus. In a previous lesson, we discussed the anatomy of the humerus and which radiographic projections are routinely performed. So let's tie that information to the radiographs themselves. As a reminder, the routine radiographic projections of the humerus are AP and lateral. Take a look at this radiograph. What projection is being demonstrated? How do you know? Did you say an AP projection of the humerus? While you may have guessed correctly, it's important to know the evaluation criteria to ensure it is a true AP view. We can tell this is an AP because proximally, the greater tubercle is seen in profile laterally. The humeral head is seen in profile medially with minimal superimposition of the glenoid cavity, and the outline of the lesser tubercle is seen superimposed over the humeral head. Distally, both lateral and medial epicondyles are visualized in profile.