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Extraskeletal osteosarcoma of the jaw
Hiroshi Hatano1, Tetsuro Morita, Hiroto Kobayashi
1Department of Orthopedic Surgery, Niigata Cancer Center, 2-15-3, Kawagishi-Cho, 951-8566 Niigata City, Japan. hatanoh@niigata-cc.jp
Skeletal Radiology
|June 30, 2004
Summary
Extraskeletal osteosarcoma is a rare soft tissue malignancy. This case highlights a unique presentation in the jaw angle, mimicking a calcified lymph node on imaging.
Area of Science:
- Oncology
- Pathology
- Radiology
Background:
- Extraskeletal osteosarcoma is a rare soft tissue malignancy, comprising 1-2% of all soft tissue sarcomas.
- Tumors in the head and neck region are exceptionally uncommon.
Observation:
- A case of extraskeletal osteosarcoma originating in the subcutaneous tissue of the jaw angle is presented.
- The central portion of the tumor exhibited calcification.
- Imaging revealed a small, well-circumscribed lesion suggestive of high-grade malignancy.
Findings:
- The tumor's appearance mimicked a calcified lymph node.
- Discussion includes differential diagnosis and characteristic imaging and pathological features of extraskeletal osteosarcoma.
Implications:
- This case underscores the importance of considering rare diagnoses in head and neck imaging.
- Accurate diagnosis relies on integrating imaging findings with pathological evaluation.
- Understanding the imaging characteristics of extraskeletal osteosarcoma aids in early detection and management.