Muscles of the rotator cuff

Muscles of the rotator cuff and their sites of attachment. What is the normal MRI appearance of the tendons?

From anterior to posterior, the rotator cuff is composed of the subscapularis muscle, which attaches on the lesser tuberosity of the humerus; and the supraspinatus, infraspinatus, and teres minor muscles, which attach on the greater tuberosity (see Figure 52-1 ). As in other areas of the body, the normal tendons are homogeneously low in signal intensity on all pulse sequences.

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