Presentation
Chronic shoulder pain.
Patient Data
Age: 40 years
Gender: Male
From the case:
Teres minor atrophy
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Atrophy of teres minor muscle with fatty infiltration.
No obvious focal lesion in quadrilateral space.
Case Discussion
Teres minor atrophy is a shoulder pathology seen usually as a part of other syndromes with rotator cuff muscle atrophy including quadrilateral space syndrome. Sometimes it is seen as an isolated finding with unknown exact etiology, but some studies suggest the considerable anatomical variation in both the origin and length of the teres minor nerve that increases the risk of impingement and subsequent isolated teres minor atrophy.
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