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Imaging of alveolar soft part sarcoma
B D Daly1, H Cheung, P A Gaines
1Department of Diagnostic Radiology and Organ Imaging, Chinese University, Prince of Wales Hospital, Hong Kong.
Clinical Radiology
|October 1, 1992
Summary
Alveolar soft part sarcoma (ASPS) is a rare, highly vascular tumor. Imaging reveals its tendency for widespread metastases, making early detection crucial for patient management and surveillance.
Area of Science:
- Oncology
- Radiology
- Medical Imaging
Background:
- Alveolar soft part sarcoma (ASPS) is a rare soft tissue malignancy.
- ASPS is known for its high vascularity and propensity for metastasis.
- Previous imaging studies have highlighted its characteristics, but specific Doppler US and MR findings require further emphasis.
Purpose of the Study:
- To review imaging findings in patients with alveolar soft part sarcoma (ASPS).
- To emphasize previously unreported Doppler US and MR evidence of vascularity in ASPS.
- To highlight the importance of imaging for pre-operative localization and long-term surveillance of ASPS.
Main Methods:
- Review of imaging investigations in six patients diagnosed with ASPS.
- Utilized Magnetic Resonance Imaging (MRI), Computed Tomography (CT), Doppler Ultrasound (US), and angiography.
- Focused on identifying tumor vascularity and metastatic patterns.
Main Results:
- Imaging confirmed the highly vascular nature of ASPS.
- Pulmonary and intracranial metastases were frequently observed.
- New Doppler US and MR evidence showed enlarged vessels and high blood flow in primary and metastatic ASPS.
Conclusions:
- ASPS is a rare, highly vascular tumor with a high metastatic potential.
- Advanced imaging techniques like MRI and Doppler US are vital for diagnosing and monitoring ASPS.
- Imaging plays a critical role in pre-operative localization and long-term surveillance of this disseminating tumor.