Osteoid osteoma--the CT vessel sign.
Gal Yaniv1, Noga Shabshin, Michal Sharon
1Dept of Diagnostic Imaging, The Sheba Medical Center, Tel Hashomer, Israel. mdgalyaniv13@gmail.com
Skeletal Radiology
|April 13, 2011
Summary
A feeding blood vessel near the nidus is a common finding in osteoid osteomas of long bones on multidetector CT (MDCT). This vascular proximity can serve as an additional diagnostic clue for osteoid osteoma.
Area of Science:
- Orthopedic oncology
- Radiology
- Medical imaging
Background:
- Osteoid osteoma is a benign bone tumor.
- Accurate diagnosis is crucial for appropriate treatment.
Purpose of the Study:
- To determine if a feeding vessel near osteoid osteomas on multidetector CT (MDCT) aids diagnosis.
- To evaluate the incidence of vascular proximity in osteoid osteoma.
Main Methods:
- Analysis of 49 MDCT scans of osteoid osteoma patients.
- Comparison with 20 MDCT scans of other cortical bone lesions.
- Consensus evaluation by two radiologists for vascular presence near the nidus.
Main Results:
- A feeding vessel was present in 79.6% of osteoid osteoma cases.
- Vessels entered or were near the nidus in 39 cases.
- Only 10% of control lesions showed proximity to a blood vessel (P < 0.05).
Conclusions:
- Vascular proximity is frequently observed in osteoid osteomas on MDCT.
- This finding may serve as an adjuvant diagnostic clue.
- Further research is needed on the vessel's role in pathogenesis and diagnostic accuracy.
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