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[Chronic monoarthritis caused by osteoid osteoma]
M L García-Vivar1, E Galindez, J Aróstegui
1Sección de Reumatología, Hospital de Basurto, Bilbao.
Anales De Medicina Interna (Madrid, Spain : 1984)
|July 1, 1996
Summary
Intraarticular osteoid osteoma, a rare nonmalignant tumor, can mimic infectious arthritis, delaying diagnosis. Computed tomography (CT) is crucial for identifying these tumors, which cause joint inflammation through prostaglandin secretion.
Area of Science:
- Orthopedics
- Radiology
- Rheumatology
Background:
- Osteoid osteoma is a benign bone tumor that rarely occurs within a joint.
- Intraarticular osteoid osteoma can present with symptoms mimicking infectious or inflammatory arthritis, leading to diagnostic delays.
Observation:
- A 34-year-old male with HIV presented with chronic monoarthritis of the left elbow.
- Initial diagnosis was infectious disease, but symptoms persisted for two years.
- Computed tomography (CT) raised suspicion for osteoid osteoma.
Findings:
- Pathologic examination confirmed the diagnosis of osteoid osteoma.
- CT is the preferred imaging modality for diagnosing osteoid osteoma.
- Tumor-induced prostaglandin secretion is believed to cause secondary synovitis.
Implications:
- Early recognition of intraarticular osteoid osteoma is essential to prevent prolonged joint damage.
- CT imaging should be considered in cases of chronic, unexplained monoarthritis, especially when infectious causes are ruled out.
- Understanding the mechanism of synovitis can aid in managing symptoms associated with osteoid osteoma.