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Soft tissue osteosarcoma with telangiectatic features: MR imaging findings in two cases
J J Dubec1, P L Munk, J X O'Connell
1Department of Radiology, Vancouver Hospital and Health Sciences Center, Vancouver Musculoskeletal Tumor Group, University of British Columbia, Canada.
Skeletal Radiology
|February 7, 1998
Summary
Telangiectatic extraskeletal osteosarcomas are rare soft tissue tumors. MR imaging findings, including fluid levels, aid in diagnosing these lesions in older adults.
Area of Science:
- Orthopedic Oncology
- Radiology
- Soft Tissue Pathology
Background:
- Extraskeletal osteosarcomas represent a rare group of tumors.
- The telangiectatic subtype is the least common among them.
- This study focuses on pretibial soft tissue occurrences.
Observation:
- Two cases of pretibial extraskeletal osteosarcoma with telangiectatic features were analyzed.
- Magnetic resonance (MR) imaging was utilized to assess the tumors.
- Tumors exhibited significant inhomogeneity on T2-weighted spin echo and STIR sequences.
Findings:
- One tumor displayed multiple fluid-fluid levels, a distinctive characteristic.
- MR imaging findings are reviewed in the context of these rare tumors.
- Telangiectatic extraskeletal osteosarcoma presents as a soft tissue mass with fluid-fluid levels.
Implications:
- Consider telangiectatic extraskeletal osteosarcoma in the differential diagnosis for soft tissue masses with fluid-fluid levels.
- This diagnosis is particularly relevant in patients aged 40 years and older.
- Enhanced understanding of MR imaging features aids in early and accurate diagnosis.