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MR findings of clear cell sarcoma: two case reports
Hiroyoshi Isoda1, Masashi Kuroda, Masaki Saitoh
1Department of Radiology, Kansai Medical University, 10-15, Fumizono-cho, Moriguchi, Osaka 570-8506, Japan.
Clinical Imaging
|June 26, 2003
Summary
Clear cell sarcoma, a rare cancer, can arise from tendons in the ankle and knee. Absence of calcifications and fluid-fluid levels in tendon masses increases the likelihood of this diagnosis.
Area of Science:
- Orthopedic Oncology
- Musculoskeletal Radiology
- Soft Tissue Pathology
Background:
- Clear cell sarcoma is a rare soft tissue malignancy.
- It typically arises in tendons and aponeuroses, often near joints.
- Radiographic features can aid in its diagnosis, distinguishing it from other soft tissue masses.
Purpose of the Study:
- To describe the clinical and imaging findings of clear cell sarcoma in two patients.
- To highlight key imaging features that support the diagnosis of clear cell sarcoma.
- To emphasize the importance of considering clear cell sarcoma in the differential diagnosis of tendon and aponeurosis masses.
Main Methods:
- Case report of two patients with pathologically confirmed clear cell sarcoma.
- Review of imaging studies (MRI, CT) for characteristic features.
- Comparison with known imaging findings of other soft tissue tumors.
Main Results:
- Two cases of clear cell sarcoma of tendons in the ankle and knee are presented.
- Neither case exhibited calcifications, fluid-fluid levels, or marked hypointense areas within the masses.
- These absent features are significant in differentiating clear cell sarcoma from other potential diagnoses.
Conclusions:
- Clear cell sarcoma should be considered in the differential diagnosis of tendon and aponeurosis masses.
- The absence of specific imaging findings like calcifications and fluid-fluid levels can increase the suspicion for clear cell sarcoma.
- Further research into the imaging characteristics of rare soft tissue tumors is warranted.