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Subdeltoid lipoma causing shoulder impingement syndrome - a case report
Mario Lenza1, Miguel Vicente Lenza2, Eduardo da Frota Carrerra1
1Hospital Israelita Albert Einstein, São Paulo, SP, Brasil.
Einstein (Sao Paulo, Brazil)
|August 29, 2014
Summary
Impingement syndrome occurs when rotator cuff tendons compress against the shoulder
Area of Science:
- Orthopedics
- Sports Medicine
- Radiology
Background:
- Impingement syndrome involves rotator cuff tendon compression.
- Causes are structural (e.g., bone spurs) or functional (muscle imbalances).
Observation:
- A rare case of parosteal lipoma in the proximal humerus is presented.
- The lipoma was situated between the deltoid, teres minor, and infraspinatus muscles.
Findings:
- This parosteal lipoma caused clinical symptoms of impingement syndrome.
- It represents a rare structural etiology for shoulder impingement.
Implications:
- Highlights the importance of considering soft tissue tumors as a cause of impingement.
- Suggests imaging and further investigation for atypical impingement presentations.