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Angioleiomyoma masquerading as shoulder pain.
Surekh Ravi1, Lazar J Chandy1, Gautam Kumar1
1Department of Orthopedics, VPS Lakeshore Hospital, Kochi, India.
Clinics in Shoulder and Elbow
|March 2, 2021
Summary
A rare shoulder tumor, angioleiomyoma, was diagnosed in a young adult. This benign vascular smooth muscle neoplasm presented as chronic shoulder pain, highlighting its unusual location.
Area of Science:
- Orthopedic Surgery
- Pathology
- Radiology
Background:
- Angioleiomyoma is a rare benign soft tissue tumor derived from vascular smooth muscle.
- These neoplasms most commonly occur in the lower extremities.
Observation:
- A 20-year-old student presented with a 4-year history of right shoulder pain, exacerbated by resisted external rotation.
- Magnetic resonance imaging revealed a well-defined lesion adjacent to the infraspinatus tendon.
Findings:
- Surgical excision and subsequent histopathological examination, including immunohistochemistry, confirmed the diagnosis of angioleiomyoma.
- This case represents an extremely rare instance of shoulder angioleiomyoma, with fewer than 1% of such tumors reported in the upper arm.
Implications:
- This case underscores the importance of considering rare soft tissue tumors in the differential diagnosis of chronic shoulder pain.
- Highlights the diagnostic utility of advanced imaging and histopathology in identifying unusual tumor presentations.
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