Editorial Commentary: You May Not Have Seen It, but It Has Seen You: Diagnosis of Long Head Biceps Tendon and Subscapularis Pathology in Association With Shoulder Rotator Cuff Pathology Can Be Challenging.

The shoulder can humble you. It is often challenging in determining the extent of pathology even when there is an adequate magnetic resonance imaging performed preoperatively and even during the so-called diagnostic portion of the arthroscopy. Abnormalities of the long head of the biceps tendon and the rotator cuff especially the subscapularis can be difficult to diagnose definitively. Experience can be very helpful in predicting pathology based on patterns seen before and knowing certain pearls that can make diagnosis and ultimately treatment more accurate.