Subacromial pigmented villonodular synovitis: case report and review

Area of Science:

• Orthopedics
• Radiology
• Pathology

Background:

• Pigmented villonodular synovitis (PVNS) is a benign proliferative condition of synovial tissue.
• It typically affects joints, tendon sheaths, and bursae, usually in young to middle-aged adults.
• Shoulder PVNS, particularly in the subacromial bursa without joint involvement, is exceptionally rare.

Observation:

• A 15-year-old patient presented with a 2-year history of symptomatic PVNS in the subacromial bursa.
• Magnetic resonance imaging (MRI) was crucial for diagnosis, surgical planning, and monitoring.
• The patient experienced exuberant symptoms, necessitating intervention.

Findings:

• Complete surgical synovectomy was performed to remove all affected synovial tissue.
• The patient achieved good clinical results at the 1-year follow-up post-surgery.
• Early and complete excision is vital to prevent joint destruction.

Implications:

• This case underscores the importance of considering PVNS in the differential diagnosis of shoulder pain, even in younger individuals.
• Effective management relies on accurate diagnosis via advanced imaging and thorough surgical resection.
• Prompt treatment can lead to favorable outcomes and preserve joint function.