MediAI

  Teres Minor Atrophy: Causes, Imaging, and Clinical Implications Introduction Teres minor atrophy is an uncommon but clinically significant radiologic finding that may indicate underlying neuromuscular pathology or chronic rotator cuff injury. As one of the four rotator cuff muscles, the teres minor plays an essential role in shoulder stability and external rotation. Although it is frequently overshadowed by larger muscles like the infraspinatus and supraspinatus, degeneration or atrophy of the teres minor can lead to impaired shoulder function and warrants careful assessment. In this post, we explore the etiology, pathophysiology, imaging findings, clinical presentation, treatment, and prognosis of teres minor atrophy. We also include interpretive insights based on real imaging findings (Figure 1), quiz questions with answers, and a comprehensive literature reference. Anatomy of the Teres Minor The teres minor originates from the lateral border of the scapula and inserts on...